# maths

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one side of a right triangle is 12.5 ft the perimeter is 38.7 ft. what is the length of the hypotenuse and the other unknown side?

• maths -

Let a,b, be the legs, and c the hypotenuse

a+b+c = 38.7
a + b + √(12.52+b2) = 38.7

√(12.52+b2) = 26.2 - b

12.52+b2 = b2 - 52.4b + 686.44

52.4b = 530.19

b = 10.1
a = 12.5
c = 16.1

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