Calculate the surface area and volume of a 0.2m diameter sphere.
| June 2, 2021 | education
Let us find the surface area and volume of the ball, if it is known that the diameter is 0.2 m.
The surface area of the ball is 4 * π * R 2.
First, we find the radius D / 2 = 0.2 / 2 = 0.1 m.
Now we substitute it into the formula.
S = 4 * 3.14 * 0.1 2.
S = 4 * 3.14 * 0.01.
S = 0.1256 m 2 or 1256 cm 2.
The volume of the ball is 4/3 * π * R 3.
V = 4/3 * 3.14 * 0.001 = 0.004082 m 3 or 40, 82 cm3.
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