The formula for the surface area of a sphere is given by:
Surface Area = 4πr²
where r is the radius of the sphere.
Since the diameter of the sphere is given as 40 inches, we can find the radius by dividing the diameter by 2:
Radius = 40 inches / 2 = 20 inches
Now, we can substitute the value of the radius into the formula:
Surface Area = 4π(20 inches)²
Surface Area = 4π(400 square inches)
Surface Area = 1600π square inches
Therefore, the surface area of the sphere is 1600π square inches.
Find the surface area of a sphere with a diameter of 40 inches. Leave your answer in terms of pi.(1 point)
3 answers
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