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Glencoe Math: Course 3, Volume 2 View details

3. Volume of Spheres

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Exercise 10 Page 610

The volume of a sphere is four thirds the product of π and the cube of the radius.

about 7.5m

Practice makes perfect

We want to find the radius of a sphere knowing that its volume is equal to 1767.1 m^3. Now, let's recall that the volume of a sphere is four thirds the product of π and the cube of the radius. V=4/3π r^3 We can now substitute 1767.1 for V in the above formula and solve for r.

V=4/3π r^3

Substitute

V= 1767.1

1767.1=4/3π r^3

▼

Solve for r

MultEqn

LHS * 3=RHS* 3

1767.1* 3=4/3π r^3* 3

Multiply

5301.3=4/3π r^3* 3

CommutativePropMult