In the right-angled triangle, sides making the right angle are 9cm and 12cm. Find the length of the hypotenuse.
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Step-by-step explanation:
sides = 9 cm, 12cm
sum of square of legs = square of hypotenuse
9² + 12² = square of hypotenuse
81+ 144 = square of hypotenuse
225 = 15²
hypotenuse = 15 cm
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