Question

Chrissy is going to make a big painting on a piece of wood that is 4 feet wide and has an area of 28 ft.² what is the perimeter of the piece of wood

Answer 1

length = 7 ft

22 ft = perimeter

Step-by-step explanation:

Assuming that the piece of wood is a rectangle or a square then the formula to calculate the area would be

length * width = area

Since we are given the width and the area we can plug it into the formula and solve for the length (l)

4 * l = 28 ... divide both sides by 4

l = 7

Now that we have the value of the length we can find the perimeter by using the formula for the perimeter

length + length + width + width = perimeter

7 + 7 + 4 + 4 = perimeter

14 + 8 = perimeter

22 ft = perimeter