Question

sonia wants to sew ribbon along each side of a square pillow. the pillow has an area of 144 square inches. how much ribbon must she buy to have the exact amount that she needs?

Explanation:

Step1: Find side length of square

The area of a square is given by \( A = s^2 \), where \( s \) is the side length. Given \( A = 144 \) square inches, we solve for \( s \):
\( s = \sqrt{144} = 12 \) inches.

Step2: Calculate perimeter of square

The perimeter \( P \) of a square is \( P = 4s \). Substituting \( s = 12 \):
\( P = 4 \times 12 = 48 \) inches.

Answer:

48 inches