Question

find the size of X and Y​

Answer 1

Answer:

x=y=50°

Step-by-step explanation:

x=y ( Angles opp to equal sides)...(1)

80° + x + y = 180° (Anglesum prop of triangle)

From (1),

80° + x + x = 180°

2x = 100°

x = 50°

As x = y,

y = 50°

Hope it helps:)