
To calculate the surface area of Sphere.

Answer to Problem 26E
5028.57mm2
Explanation of Solution
Given Information: Sphere Diameter d = 40 mm and
Formula Used:Surface area of Sphere =
Calculation:
Surface area of Sphere =
Diameter d = 40 mm and
First find Radius r.
Hence,
Radius =
Put the value of diameter to find radius of Sphere
Radius =
So,
Radius r = 20 mm
Surface area of Sphere =
Radius r = 20 mm and
Now put the value of r and
Surface area of Sphere =
So,
Surface area of Sphere =
Hence,
Surface area of Sphere = 5028.57mm2
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