Triangles

2000003203

Level: 
A
A deltoid is composed of two isosceles triangles that have a common base. See the picture. Find the measures of the deltoids interior angles.
α=36; β=134; γ=56; δ=134
α=36; β=100; γ=56; δ=100
α=56; β=134; γ=56; δ=134
α=36; β=128; γ=56; δ=128