Find the length of the missing side.

The length of the missing side is

85 ft

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let h be the hypotenuse, then

h² = 40² + 75² = 1600 + 5625 = 7225 ( take the square root of both sides )

h = = 85

i would need to see the dot plot : )