Question

A spherical object has a diameter of 18 cm. It has a spherical inner core with a diameter of 9 cm.

What is the volume of the other layer?
Use 3.14 to approximate pi and express your answer in hundredths.


cm3

Answer 1

\[V_{T}=V_{O}-V_{I}\]\[V_{T}=\frac{4 \pi}{3}R^{3}-\frac{4 \pi}{3}r^{3}\]\[V_{T}=\frac{4 \pi}{3}(R^{3}-r^{3})\]

Answer 2

I got 2670.57

Answer 3

I believe you're right ..i got 2670.57 too ;)