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प्रश्न
Diagonals of a quadrilateral ABCD bisect each other. If ∠A = 35º, determine ∠B.
उत्तर
Given: Diagonals of a quadrilateral ABCD bisect each other.
So, ABCD is a parallelogram.
Now, ∠A + ∠B = 180° ...[Adjacent angles of a parallelogram are supplementary]
Since, 35° + ∠B = 180°
∠B = 180° – 35°
∠B = 145°
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