Q23 of 115 Page 8

In Fig. 8.135, if line segment AB is parallel to the line segment CD, what is the value of y?

Since, AB ‖ CD

And, BD cuts them

y + 2y + y + 5y = 180^o (Consecutive interior angle)

9y = 180^o

y = 20^o

In Fig. 8.133, if l₁ || l₂ and l₃ || l₄, what is y in the terms of x?

In Fig. 8.134, if l || m, what is the value of x?

In Fig. 8.136, if CP || DQ, then the measure of x is

In Fig. 8.137, if AB|| HF and DE||FG, then the measure of ∠FDE is