Question

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Answer 1

Answer:

180-90=45

so, angle A=angle B

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Answer 2

Answer:

using angle sum property of traingle

angle A+ angle B + angle C= 180

2angleA + angle C = 180 °

because angle A= angle B (given)

2angleA+ 90°=180°

2angle A= 180 -90°

2 angle A = 90°

angle A= 90/2

angle A = 45°

angle B = 45° ( because angleA= angleB)