Volume of Spheres

Front

What is the formula for the volume of a sphere?

Back

V = \frac{4}{3} \pi r^3

Front

What does 'r' represent in the volume formula of a sphere?

Back

The radius of the sphere.

Front

If a sphere has a diameter of 10 cm, what is its radius?

Back

5 cm

Front

What is the volume of a sphere with a radius of 3 cm?

Back

V = \frac{4}{3} \pi (3)^3 = 36\pi \approx 113.1 cm^3

Front

How do you convert diameter to radius?

Back

Divide the diameter by 2.

Front

What is the volume of a sphere with a radius of 7 inches?

Back

V = \frac{4}{3} \pi (7)^3 \approx 1436.8 in^3

Front

What is the relationship between the diameter and radius of a sphere?

Back

The diameter is twice the radius.

Front

If the volume of a sphere is 904.32 cm³, what is its radius?

Back

r = \sqrt[3]{\frac{3 \times 904.32}{4\pi}} \approx 6 cm

Front

What is the approximate value of π?

Back

3.14

Front

What shape is formed by rotating a circle around its diameter?

Back

A sphere.