Chapter 11, Problem 14SGR

To determine

To find: The perimeter and area of the triangle.

Answer to Problem 14SGR

The perimeter of the triangle is $36ft$ .

The area of the triangle is $54f{t}^2$ .

Explanation of Solution

Given Information: In figure sides of triangle are given.

Calculation: In figure sides of triangle are given.

Perimeter of triangle :

  $\begin{array}{l}=Sumofallsides\\ =15+12+9\\ =27\mathrm{ft}\end{array}$

Area of triangle:

  $\begin{array}{l}=\frac{1}{2}\times b\times h\\ =\frac{1}{2}\times 12\times 9\\ =6\times 9\\ =54{\mathrm{ft}}^2\end{array}$

Thus, the perimeter of the triangle is $36ft$ and the area of the triangle is $54f{t}^2$ .