Question

Can some help please with this MATH! Thanks

Answer 1

19.6 feet

Explanation:

We know that

The hypotenuse is 20 feet, and the bottom leg is 4 feet.

We also know that Pythagorean theorem is used when there is one missing side to a triangle.

`a^(2)` +
`b^(2)` =
`c^(2)`

Substitute in a for 4 and c for 20. The hypotenuse is always the variable c.

4^2 + b^2 = 20^2

16 + b^2 = 400

b^2=384

`√(384)` = 19.6

Answer 2

19.6 ft

Explanation:

4²+x²=20²

16+x²=400

384 = x²

x = 19.6 ft