Question

sonya wants to sew ribbon along each side of a square pillow. the expression 4 · √144 gives the exact amount of ribbon she will need for a pillow with an area of 144 square inches. how much ribbon, in inches, must sonya buy to have the exact amount?

Explanation:

Step1: Calculate square - root of 144

$\sqrt{144}=12$

Step2: Multiply by 4

$4\times12 = 48$

Answer:

48