question_answer

(A) Is l ||m? Why?

(B) Is I ||m? Why?

(C) Is I ||m? Why?

 

Answer:

(a) Since, I||m and alternate angles are equal. So, I || m 1

(b) \[\therefore \] We see that here corresponding angles are equal.

\[\therefore \] I ||m

Corresponding Angle = 180° ? 130°

= 50° (On transversal)

(c) \[\therefore \] x + 70° = 180°

(Sum of the interior angles on the same side of a transversal is 180°)

x = 180° ? 70° = 110°