the cover would be a circle, and to find the area, the formula would be (pi)r^2. r stands for the radius, and a diameter(which is 7 for this problem) divided by 2 equals the radius. The radius would be 3.5ft, because 7/2 is 3.5. You would use the radius inside the formula: A=(pi)r^2 A=(3.14)(3.5)^2 A=38.465 38.465 rounded would be 38.5ftsquared
Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area of the cover? Use = 3.14 and round the answer to the nearest square foot.