Question

A ski jump rises 3ft over a run of 7ft what is the length of the surface of the jump?

Answer 1

7.6158 feet

Explanation:

The rise and run form the shorter sides of a right triangle with the hypotenuse as the surface (see figure)

Hypotenuse (surface length) is given by the Pythagorean formula

`c = √(a^2 + b^2)` where c is the hypotenuse and a, b the shorter sides

Here

`\sf c = √(7^2 + 3^2) = √(49 + 9) = √(58) = 7.6158\;feet`