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in Quadrilaterals by (27.3k points)
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Diagonals of a quadrilateral ABCD bisect each other. If ∠A = 45°, then ∠B = 

A. 115° 

B. 120° 

C. 125° 

D. 135°

1 Answer

+1 vote
by (26.9k points)
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Best answer

Option : (D)

Given,

ABCD is a quadrilateral

∠A = 45°, 

∵ diagonals of quadrilateral bisects each other hence ABCD is a parallelogram, 

= ∠A +∠B = 180° 

= 45°+∠B = 180° 

=∠B = 180°- 45° = 135°

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