theorems on triangles Archives – Mathemafia http://sh016.global.temp.domains/~mathemaf/tag/theorems-on-triangles/ Mathematics is like music - Enjoy it!!! Wed, 16 Sep 2020 03:14:27 +0000 en-US hourly 1 https://wordpress.org/?v=7.1 https://mathemafia.com/wp-content/uploads/2020/08/cropped-M__Logo__SM-1-32x32.png theorems on triangles Archives – Mathemafia http://sh016.global.temp.domains/~mathemaf/tag/theorems-on-triangles/ 32 32 Class 9 | Chapter 7 | Triangles | Example 9 https://mathemafia.com/class-9-chapter-7-triangles-example-9/ Wed, 16 Sep 2020 02:53:52 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1994 Example 9: D is a point on side BC of ∆ ABC such that AD = AC (see Fig. 7.47). Show that AB > AD. Example 8 Class 9 | Home

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Example 9: D is a point on side BC of ∆ ABC such that AD = AC (see Fig. 7.47). Show that AB > AD.

Example 8
Class 9 | Home

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 8 https://mathemafia.com/class-9-chapter-7-triangles-example-8/ Wed, 16 Sep 2020 02:53:48 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1993 Example 8: P is a point equidistant from two lines l and m intersecting at point A (see Fig. 7.38). Show that the line AP bisects the angle between them. Example 7 Example 9

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Example 8: P is a point equidistant from two lines l and m intersecting at point A (see Fig. 7.38). Show that the line AP bisects the angle between them.

Example 7
Example 9

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 7 https://mathemafia.com/class-9-chapter-7-triangles-example-7/ Wed, 16 Sep 2020 02:53:43 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1992 Example 7: AB is a line-segment. P and Q are points on opposite sides of AB such that each of them is equidistant from the points A and B (see Fig. 7.37). Show that the line PQ is the perpendicular…

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Example 7: AB is a line-segment. P and Q are points on opposite sides of AB such that each of them is equidistant from the points A and B (see Fig. 7.37). Show that the line PQ is the perpendicular bisector of AB.

Example 6
Example 8

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 6 https://mathemafia.com/class-9-chapter-7-triangles-example-6/ Wed, 16 Sep 2020 02:53:39 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1991 Example 6: In an isosceles triangle ABC with AB = AC, D and E are points on BC such that BE = CD (see Fig. 7.29). Show that AD = AE. Example 5 Example 7

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Example 6: In an isosceles triangle ABC with AB = AC, D and E are points on BC such that BE = CD (see Fig. 7.29). Show that AD = AE.

Example 5
Example 7

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 5 https://mathemafia.com/class-9-chapter-7-triangles-example-5/ Wed, 16 Sep 2020 02:53:34 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1990 Example 5: E and F are respectively the mid-points of equal sides AB and AC of ∆ ABC (see Fig. 7.28). Show that BF = CE. Example 4 Example 6

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Example 5: E and F are respectively the mid-points of equal sides AB and AC of ∆ ABC (see Fig. 7.28). Show that BF = CE.

Example 4
Example 6

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 4 https://mathemafia.com/class-9-chapter-7-triangles-example-4/ Wed, 16 Sep 2020 02:53:28 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1989 Example 4: In ∆ ABC, the bisector AD of ∠ A is perpendicular to side BC (see Fig. 7.27). Show that AB = AC and ∆ ABC is isosceles. Example 3 Example 5

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Example 4: In ∆ ABC, the bisector AD of ∠ A is perpendicular to side BC (see Fig. 7.27). Show that AB = AC and ∆ ABC is isosceles.

Example 3
Example 5

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 3 https://mathemafia.com/class-9-chapter-7-triangles-example-3/ Wed, 16 Sep 2020 02:53:24 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1988 Example 3: Line-segment AB is parallel to another line-segment CD. O is the mid-point of AD (see Fig. 7.15). Show that (i) ∆AOB ≅ ∆DOC (ii) O is also the mid-point of BC. Example 2 Example 4

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Example 3: Line-segment AB is parallel to another line-segment CD. O is the mid-point of AD (see Fig. 7.15). Show that (i) ∆AOB ≅ ∆DOC (ii) O is also the mid-point of BC.

Example 2
Example 4

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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]]> Class 9 | Chapter 7 | Triangles | Example 2 | Perpendicular bisector theorem https://mathemafia.com/class-9-chapter-7-triangles-example-2/ Wed, 16 Sep 2020 02:53:20 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1987 Example 2: AB is a line segment and line l is its perpendicular bisector. If a point P lies on l, show that P is equidistant from A and B. Example 1 Example 3

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Example 2: AB is a line segment and line l is its perpendicular bisector. If a point P lies on l, show that P is equidistant from A and B.

Example 1
Example 3

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

The post Class 9 | Chapter 7 | Triangles | Example 2 | Perpendicular bisector theorem appeared first on Mathemafia.

]]> Class 9 | Chapter 7 | Triangles | Example 1 https://mathemafia.com/class-9-chapter-7-triangles-example-1/ Wed, 16 Sep 2020 02:52:32 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1985 Example 1: In Fig. 7.8, OA = OB and OD = OC. Show that (i) ∆ AOD ≅ ∆ BOC and (ii) AD || BC. Class 9 | Home Example 2

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Example 1: In Fig. 7.8, OA = OB and OD = OC. Show that (i) ∆ AOD ≅ ∆ BOC and (ii) AD || BC.

Class 9 | Home
Example 2

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

The post Class 9 | Chapter 7 | Triangles | Example 1 appeared first on Mathemafia.

]]> Class 9 | Chapter 7 | Triangles | Theorem 7.8 https://mathemafia.com/class-9-chapter-7-triangles-theorem-7-8/ Thu, 13 Aug 2020 07:50:25 +0000 http://sh016.global.temp.domains/~mathemaf/?p=1208 Theorem 7.8: The sum of any two sides of a triangle is greater than the third side. Theorem 7.7 Class 9 | Home

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Theorem 7.8: The sum of any two sides of a triangle is greater than the third side.

Theorem 7.7
Class 9 | Home

Chapter 7 – Triangles

This playlist covers all the questions, concepts, theorems and examples of chapter 7 (Triangles) of class 9, NCERT textbook. Click a thumbnail to watch the tutorial. 

Watch complete chapter on YouTube
​

Theorems

Theorem 7.1

Theorem 7.2

Theorem 7.3

Theorem 7.4

Theorem 7.5

Theorem 7.6

Theorem 7.7

Theorem 7.8

Exercise 7.1

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Exercise 7.3

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 7.4

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

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