A sphere has a diameter of 1.2 meters. The sphere increased the diameter by 0.2 meters. What percent increase is the radius of the sphere?

Question

Emerson Newman

Mathematics

10 December, 11:22

A sphere has a diameter of 1.2 meters. The sphere increased the diameter by 0.2 meters. What percent increase is the radius of the sphere?

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Answers (1)

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Marley Jarvis · Answer 1

So, the sphere went from 1.2 meters to 1.4 meters.

The radius will always be half of the diameter. So it went from. 6 to. 7.

Let's divide and see what percent. 7 is of. 6.

.7:.6=1.166666666 (repeating 6).

This means, it increased by about 16.7%, since it was not doubling, just going up.