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Sum of two acute angles of a right angle...

Sum of two acute angles of a right angled triangle is ..............

A

`90^@`

B

`60^@`

C

`30^@`

D

`180^@`

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The correct Answer is:
A
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  11. Find the value of x and y

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  15. In triangleABC, AB = AC, then | B =

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  20. The opposite side of right angle is .......

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