7th Grade Math

1.5 cm

8 cm

Find the volume of each cylinder. Round to the nearest tenth.

a.

1.8 in.

3 in. b. 2.4 m

9 m

WEATHER The decorative rain gauge

13 cm

3 cm

shown has a height of 13 centimeters

and a diameter of 3 centimeters. How

much water can the rain gauge hold?

V = πr^2 h Volume of a cylinder

V = π(1.5)^213 Replace r with 1.5 and h with 13.

V ≈ 91.9 Simplify.

The rain gauge can hold about

91.9 cubic centimeters.

c. PAINT Find the volume of a cylindrical paint can that has

a diameter of 4 inches and a height of 5 inches. Round to the

nearest tenth.

Circles Circles Recall that the

radius is half the

diameter.

Example 1 Find the volume of each cylinder. Round to the nearest tenth.

1.

3 in.

5 in.

2. 
   

   (^33) 11 ft
   6.5 ft
   Example 2 4. CONTAINERS A can of concentrated orange
   juice has the dimensions shown at the right.
   Find the volume of the can of orange juice
   to the nearest tenth.

   
   


3. 
   

   CANDLES A scented candle is in the shape of
   a cylinder. The radius is 4 centimeters and
   the height is 12 centimeters. Find the volume
   of the candle. Round to the nearest tenth.

   
   

Lesson 1C Volume 565

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