Question

Which angel is necessary for a right angled triangle?​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Theorem: In a right-angled triangle, if the sum of the square of two sides is equal to the square of one side, then the right angle is the angle that is opposite to the first side. To prove ∠Q = 90˚. We need to prove that ∠Q = 90˚.