(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°
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