# Isosceles trapezoid v3

In an isosceles trapezoid ABCD is the size of the angle β = 81°
Determine size of angles α, γ and δ.

Correct result:

α =  81 °
γ =  99 °
δ =  99 °

#### Solution:

$\alpha =\beta =8{1}^{\circ }$
$\gamma =\delta =180-81=9{9}^{\circ }$ We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you! #### You need to know the following knowledge to solve this word math problem:

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