Clinton and Stacy want to buy a trampoline for their kids. They are considering two trampolines.
Trampoline A has a diameter of 14 feet.
Trampoline B has a diameter of 20 feet.
Approximately how much greater, in square feet and rounded to the nearest hundredth, is the area of Trampoline B than the area of Trampoline A?
Use 3.14 for
.
To find the area of a circle, we use the formula A = πr^2, where r is the radius of the circle.
Trampoline A:
Radius = 14 feet / 2 = 7 feet
Area = 3.14 * 7^2 = 3.14 * 49 = 153.86 square feet
Trampoline B:
Radius = 20 feet / 2 = 10 feet
Area = 3.14 * 10^2 = 3.14 * 100 = 314 square feet
To find the difference in area:
314 square feet - 153.86 square feet = 160.14 square feet
Therefore, the area of Trampoline B is approximately 160.14 square feet greater than the area of Trampoline A.