Question

how many square yards of cement are needed to create the walkway around the rectangular pool? 12 yds 4 yds 12 yds pool 4 yds 6 yds 4 yds 6 yds 6 yds 6 yds 6 yds 12 yds 4 yds 12 yds 176 square yards 196 square yards 208 square yards 280 square yards

Explanation:

Step1: Calculate the length of the outer rectangle

The length of the outer rectangle \(l = 12+4 + 4=20\) yds.

Step2: Calculate the width of the outer rectangle

The width of the outer rectangle \(w=6 + 4+6=16\) yds.

Step3: Calculate the area of the outer rectangle

The area of the outer rectangle \(A_{outer}=l\times w=20\times16 = 320\) square yds.

Step4: Calculate the area of the pool

The area of the pool \(A_{pool}=12\times12 = 144\) square yds.

Step5: Calculate the area of the walk - way

The area of the walk - way \(A = A_{outer}-A_{pool}=320 - 144=176\) square yds.

Answer:

176 square yards