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Please help me answer the question ​

Please help me answer the question ​-example-1
User Nitsuj
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1 Answer

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Explanation:

By Pythagoras' Theorem, the sum of squares of the side lengths of a right-angled triangle is the square of its hypotenuse.

In Question 11, 2^2 + 1^2 = a^2. a = √5.

In Question 12, 2^2 - 1^2 = b^2. b = √3.

User Jon Canning
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