How do you find the length of the hypotenuse of a right triangle with lengths of 9 and 12?

1 Answer
Oct 8, 2016

15

Explanation:

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In a right angled triangle: the square of the hypotenuse is equal to
the sum of the squares of the other two sides.

c2=a2+b2

Given that the two legs of the right-angled triangle are 9 and 12, respectively,

the hypotenuse h2=92+122
h2=81+144=225
h=225=15