The radius of the ball is 1.5 dm. Find its volume and surface area.
| July 27, 2021 | education
The volume of a ball with a radius of 1.5 dm is found by the formula for the volume of the ball:
V = 4/3 * ттR ^ 3 = 4/3 * 3.14 * 1.5 ^ 3 = 4/3 * 3.14 * 3.375 = 4 * 3.14 * 1.125 = 14.13 ≈ 14.1 dm3 …
The surface area of the ball is found by the formula S = 4ттR ^ 2:
S = 4 * 3.14 * 1.5 ^ 2 = 4 * 3.14 * 2.25 = 28.26 ≈ 28.3 dm2.
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