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Big Ideas Math: Modeling Real Life, Grade 8 View details

Chapter Review

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Exercise 10 Page 456

Use the formula for the volume of a cone.

23.9 mm

Practice makes perfect

The given solid is a cone.

We can use the formula for the volume of a cone to calculate the height. V= 13π r^2 h Here, V is the volume, r is the radius, and h is the height of the cone. We know that the radius is 6 millimeters and the volume is 900 cubic millimeters. Let's substitute these values into the formula and calculate the height.

V=1/3π r^2 h

SubstituteII

V= 900, r= 6

900=1/3π ( 6)^2 h

▼

Solve for h

CalcPow

Calculate power

900=1/3π(36)h

MoveRightFacToNumOne

1/b* a = a/b

900=36/3π h