Question

answer should be in step by step
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Answer 1

Answer:

In the given figure, consider the top right triangle. It is a right angled triangle. So its central angle must be 90°.

Also, according to Angle Sum Property of a triangle, The sum of all the angles of the triangle must be 180°.

=> Y + 30° + 90° = 180°

=> Y = 180° - 120°

=> Y = 60°

Answer 2

Step-by-step explanation:

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