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In trapezoid ABCD, sides AB and CD are parallel, angle A = 2(angle D), and angle C = 8(angle B). Find angle B

 Apr 25, 2022
 #1
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Since AB  and CD are parallel, then B and C are supplementary

 

B + 8B  =  180

 

9B  =   180

 

B =  180 /  9     =   20°

 

 

cool cool cool

 Apr 25, 2022

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