Answer
P=32cm
Work Step by Step
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
$P=a+2b=14+(2\times9)=14+18=32$