Answer:
17 inches
Step-by-step explanation:
Given
--- Perimeter of rectangle
Required
The length of the original square
The perimeter is calculated as

Divide by 2

The rectangle and the square have the same length.
So:

becomes


Divide both sides by 3

Recall that:



Answer:
the second answer
Step-by-step explanation:
I hope it helps
You add all of the numbers up each row and divide by how many there are so:
row one: if u add it all up it would be 10 then divide by how many there are