Question

A triangle has side lengths of (3a – 7),

(a + 14), and (2a + 1). What simplified
expression represents the perimeter of the
triangle?

Answer 1

6a+8

Explanation:

To find the perimeter of a shape add all the sides up

To do this just add everything together

this means we have

3a-7+a+14+2a+1

Add like terms and get

6a+8