Question

Just help me plssssssssss

Answer 1

The perimeter of triangle is 30ft.

Explanation:

First you have to find the value of a using Pythogoras Theorem, a² + b² = c² where a and b is the sides and c is the hypotenuse :

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

`{a}^(2) = {c}^(2) - {b}^(2)`

`a = \sqrt{ {c}^(2) - {b}^(2) }`

Let b = 12,

Let c = 13,

`a = \sqrt{ {13}^(2) - 12 {?}^(2) }`

`a = √(25)`

`a = 5feet`

Next you have to find the perimeter of triangle by adding all the sides together :

`perimeter = 5 + 12 + 13`

`perimeter = 30feet`