Question

find the measure of marked angles a,b,c and d from the given figure

Answer 1

Assumed AB is // to CD

.

Find ∠a:

∠a = 40° [Alternate angles]

.

Find ∠b:

∠b = 360 - 40 - 60 [Angles at a point add up to 360]

∠b = 260°

.

Answer: ∠a = 40°, ∠b = 260°