Q. 305.0( 1 Vote )
Diagonals of a quadrilateral ABCD bisect each other. If ∠A =45°, then ∠B =
A. 115°
B. 120°
C. 125°
D. 135°
Answer :
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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