Author name: shyam

Theorem 6.7 Class 9 The sum of the angles of a triangle is 180º. Theorem 6.7 Class 9 The sum […]

Theorem 6.6 Class 9 Lines which are parallel to the same line are parallel to each other. Theorem 6.6 Class

Theorem 6.5 Class 9 If a transversal intersects two lines such that a pair of interior angles on the same

Theorem 6.4 Class 9 If a transversal intersects two parallel lines, then each pair of interior angles on the same

Theorem 6.3 Class 9 If a transversal intersects two lines such that a pair of alternate interior angles is equal,

Theorem 6.2 Class 9 If a transversal intersects two parallel lines, then each pair of alternate interior angles is equal.

Theorem 6.1 Class 9 If two lines intersect each other, then the vertically opposite angles are equal. Theorem 6.1 Class

Class 9 Maths Chapter 6 Theorems Lines and Angles Theorem 6.1 If two lines intersect each other, then the vertically