Question

The perimeter of the rectangle below is 108 units. Find the length of side AD.

Write your answer without variables.
D
A
2z + 1 C
3z + 3
B
AD =

Answer 1

Answer:
`AD=33`

Explanation:

Using the formula for the perimeter of a rectangle,

`2(2z+1+3z+3)=108\\\\2(5z+4)=108\\\\5z+4=54\\\\5z=50\\\\z=10\\\\\implies BC=33 \implies AD=33`