Question

find the angle in this figure
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Answer 1

Answer:

Y = 90° ( By Vertically opposite angles )

If Y is 90° , then other two angles can be acute angles.

Case 1 : Assumption

Let the other two sides be ' x '

So, it forms a isosceles triangle

y ° + x ° + x ° = 180° ( Angle sum property of a triangle)

90° + 2x ° = 180°

2x° = 180° - 90°

x = 90°/2

x = 45°

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