Question

An architect is planning a triangular pool with a perimeter of 99 ft.Two of the sides measure 20 and 42, respectively, what is the length of the missing side(x)?Solve for x

Answer 1

Given:

Perimeter of the triangle = 99 ft

Length of two sides are 20 ft and 42 ft.

To find:

The length of missing side.

Solution:

Let the missing side be x.

Perimeter of a triangle is the sum of all sides of that triangle.

$x+20+42=99$

$x+62=99$

Subtract 62 from both sides.

$x=99-62$

$x=37$

Therefore, the missing side of the triangle is 37 ft.