Question

What is the perimeter

This Pythagorean theorem

Answer 1

P = 48 ft

Explanation:

Use Pythagorean theorem to find b

b = √20² - 16² = √400-256 = √ 144

b = 12

Perimeter is the sum of all sides so P = 20+16+12

P = 48

Answer 2

48 feet.

Explanation:

The Pythagorean Theorem is:

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

Plug in the numbers accordingly (it already gives the hypotenuse, "c."):

`16^2+b^2=20^2\\256 + b^2 = 400`

Subtract 256 from both sides:

`b^2 = 144`

Take the square root of both sides:

`√(b^2) = √(144)`

b = 12

To find the perimeter, add all the sides together, like so:

20 + 16 + 12 = 48