Question

quadrilateral ABCD is parallelogram. if angle A =x° and angle B=2x° then angle C =?
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Answer 1

Answer:

A = x°

B=2x°

let C and D = x°

x°+2x°+x°+x°=360°

5x°=360°

x° = 360/5

x° = 72°

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Angles are :-

Angle A = 72°

Angle B = 2×72° = 144°

Angle C = 72°

Angle D = 72°

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Let's check :-

72°+144°+72°+72°

= 360°

Hence, answer is correct

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