Question

Angle efb is 80 what is the the size of angle x

Answer 1

Answer: a) The size of angle x is $80^{\circ}$.

b)  A. Corresponding angles.

Step-by-step explanation:

Since AD is parallel to EH and CG is a transversal intersecting them at B and F, then $\angle ABF = \angle EFG$  ...(i)

[Pair of corresponding angles are equal lie on the same side of the transversal]

Here, $\angle EFG =80^{\circ}$ , $\angle ABF = x$

then, $x =80^{\circ}$  [Substitute values in (i)]

Hence, the size of angle x is $80^{\circ}$.

Reason for this: Corresponding angles.