Question

A scientists makes a spherical magnets. Each magnet has a radius of 1.02 cm. They are stored away in boxes of 250. Calculate the volume of 250 magnets, to the nearest cubic cm. Use 3.14 for pie
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Answer 1

The volume of a sphere is given by

$V = \dfrac{4}{3}\pi r^3$

If we use $\pi \approx 3.14$, we get

$V = \dfrac{4}{3}\cdot 3.14 \cdot 1.02^3 \approx 4.44$ cubic centimeters

So, the volume of 250 spheres is

$250\cdot 4.44 \approx 1110.73$ cubic centimeters