The area of a rectangle i 24cm2. The length of one of the sides is 8cm. The perimeter of the rectangle is?

Question

please help me. I am in desperate need of help!

Answer 1

We need to keep track of both rectangle area and perimeter formulas:

A = lw

P = 2l + 2w

 

We know two of the three variables in the area (area, length), so we can use that to find the third (width).

24 cm² = 8 cm * w

24 cm² / 8 cm = w

24 cm / 8 = w

3 cm = w

 

Now that we know the width, you can solve for the perimeter:

P = 2 * 8 + 2 * 3