Think About the Process A sphere has a diameter of 56 ft. What should be the first step to find the surface area of the sphere? What is the surface area? Use 3.14 for pie
The first step to find the surface area of a sphere with a diameter of 56 ft is to calculate the radius of the sphere.
The radius of a sphere is half of its diameter. So, to find the radius, we divide the diameter by 2:
56 ft ÷ 2 = 28 ft.
The surface area of a sphere can be calculated using the formula:
Surface Area = 4πr^2
Given that π (pi) should be approximated to 3.14 and the radius of the sphere is 28 ft, we can now substitute the values into the formula:
Surface Area = 4 x 3.14 x (28 ft)^2
Calculating the equation gives us:
Surface Area = 4 x 3.14 x (28 ft x 28 ft)
Surface Area = 4 x 3.14 x 784 ft^2
Surface Area = 3,120.64 ft^2
Therefore, the surface area of the sphere is approximately 3,120.64 square feet.