Question

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Answer 1

Answer:

according to Pythagoras theorem

15²-9²=X²

225-81=X²

root 144 =X

X=12

Step-by-step explanation:

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Answer 2

Answer:

Pythagoras equation: c2 = a2 + b2 ('c' = hypotenuse of the right triangle whereas 'a' and 'b' are the other two legs.). Hence, any triangle with one angle equal to 90 degrees will be able to produce a Pythagoras triangle. We can use this Pythagoras equation: c2 = a2 + b2 there.

Step-by-step explanation:

(PR)²=(PQ)² +(QR)²

(QR)²= (PR)²- (PQ)²

(QR)²= 15²-9²

(QR)² = 225 - 81

(QR)²= 144

QR = square root of 144

QR = 12cm

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