Class 9 - Triangles Archives – Page 2 of 5

Theorem 7.5: (RHS congruence rule) : If in two right triangles the hypotenuse and one side of one triangle are equal to the hypotenuse and one side of the other triangle, then the two triangles are congruent. Theorem 7.4 Theorem…

13 Aug

Class 9 | Chapter 7 | Triangles | Theorem 7.4

Class 9 - TrianglesClass 9 math tutorials, math, mathemafia, NCERT, theorems on triangles, Triangles

Theorem 7.4: (SSS congruence rule) If three sides of one triangle are equal to the three sides of another triangle, then the two triangles are congruent. Theorem 7.3 Theorem 7.5

13 Aug

Class 9 | Chapter 7 | Triangles | Theorem 7.3

Class 9 - TrianglesClass 9 math tutorials, math, mathemafia, NCERT, theorems on triangles, Triangles

Theorem 7.3: The sides opposite to equal angles of a triangle are equal Theorem 7.2 Theorem 7.4

13 Aug

Class 9 | Chapter 7 | Triangles | Theorem 7.2 | Isosceles triangle theorem

Class 9 - TrianglesClass 9 math tutorials, Isosceles triangle theorem, math, mathemafia, NCERT, theorems on triangles, Triangles

Theorem 7.2: Angles opposite to equal sides of an isosceles triangle are equal. Theorem 7.1 Theorem 7.3 Prerequisite It is quite easy to prove this theorem and it’s been proved by two different ways in the above tutorial: Using angle…

13 Aug

Class 9 | Chapter 7 | Triangles | Theorem 7.1

Class 9 - TrianglesClass 9 math tutorials, math, mathemafia, NCERT, theorems on triangles, Triangles

Theorem 7.1: (ASA congruence rule) Two triangles are congruent if two angles and the included side of one triangle are equal to two angles and the included side of other triangle. Home Theorem 7.2

09 Aug

Class 9 | Chapter 7 | Triangles | Exercise 7.4 | Question 6

Class 9 - TrianglesClass 9 math tutorials, Lines and angles, math, mathemafia, mathematics, NCERT

Question 6: Show that of all line segments drawn from a given point not on it, the perpendicular line segment is the shortest. Question 5 Home

09 Aug

Class 9 | Chapter 7 | Triangles | Exercise 7.4 | Question 5

Class 9 - TrianglesClass 9 math tutorials, Lines and angles, math, mathemafia, mathematics, NCERT

Question 5: In Fig 7.51, PR > PQ and PS bisects ∠QPR. Prove that ∠PSR > ∠PSQ. Question 4 Question 6

Class 9 – Triangles

Class 9 | Chapter 7 | Triangles | Theorem 7.8

Class 9 | Chapter 7 | Triangles | Theorem 7.7

Class 9 | Chapter 7 | Triangles | Theorem 7.6

Class 9 | Chapter 7 | Triangles | Theorem 7.5

Class 9 | Chapter 7 | Triangles | Theorem 7.4

Class 9 | Chapter 7 | Triangles | Theorem 7.3

Class 9 | Chapter 7 | Triangles | Theorem 7.2 | Isosceles triangle theorem

Class 9 | Chapter 7 | Triangles | Theorem 7.1

Class 9 | Chapter 7 | Triangles | Exercise 7.4 | Question 6

Class 9 | Chapter 7 | Triangles | Exercise 7.4 | Question 5

YouTube

Recent