## Algebra 2 (1st Edition)

Perimeter is the length of the outline of a shape. We can calculate it by summing up all the sides of the triangle. We are given 2 sides with a length of 9 cm, so we will label them as side $b$, and 1 side with a length of 14 cm which we will label as side $a$ therefore $P=a+2b=14+(2\times9)=14+18=32$