09
Aug
Class 9 | Chapter 6 | Lines and Angles | Theorem 6.3
Theorem 6.3 : If a transversal intersects two lines such that a pair of alternate interior angles is equal, then the two lines are parallel. Theorem 6.2 Theorem 6.4
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09
Aug
Class 9 | Chapter 6 | Lines and Angles | Theorem 6.2 | Alternate interior angles theorem
Theorem 6.2: If a transversal intersects two parallel lines, then each pair of alternate interior angles is equal. Theorem 6.1 Theorem 6.3 Prerequisite This is one of the most easy to prove and widely used theorem to prove other theorems…
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09
Aug
Class 9 | Chapter 6 | Lines and Angles | Theorem 6.1 | Vertically opposite angles theorem
Theorem 6.1: If two lines intersect each other, then the vertically opposite angles are equal. Prerequisite This is one of the most used theorems in geometry and one of the most easiest one to prove as well. All you need…
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