Question

The length of the missing side is: ?m

Answer 1

85 ft

Explanation:

for all right triangles, triangles with a 90 degree angle, the sides are equal to
`a^(2) + b^(2) = c^(2)` where c is the hypotenuse, or the longest side.

so...
`40^(2) + 75^(2) = c^(2)`

`7225 = c^(2)`

c= 85