Question

A right triangle has a side length that measures 4 m and a hypotenuse that measures 8.5 m. What is the measure of the other side of the triangle?

7.5 m
8.1 m
9.4 m
9.8 m

Answer 1

a^2=c^2-b^2=>
a^2=8.5^2-4^2=>
a=sqrt(56.25) (take +ve a only)
=>
a=7.5 m

Answer 2

Let x be the other side
By pyth. thm,
(8.5)^2 = 4^2 + x^2
x=7.5