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Volume and Surface Area of Cones

Calculate the volume and surface area of various cones using given dimensions.

Grade 9 Math GeometryVolume and Surface Area of Cones
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Includes

2 Short AnswerFill in the BlanksMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.HSG.GMD.A.3

Topics

mathgeometryconesvolumesurface areagrade-9
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Volume and Surface Area of Cones

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Read each question carefully and solve for the volume or surface area of the cones. Show all your work. Use π ≈ 3.14 where necessary. Round your answers to two decimal places.

1. A cone has a radius of 5 cm and a height of 12 cm. Calculate its volume.

r = 5 cmh = 12 cm

2. Find the volume of a cone with a diameter of 10 meters and a height of 15 meters.

d = 10 mh = 15 m

3. A cone has a radius of 3 cm and a slant height of 5 cm. Calculate its lateral surface area and total surface area.

r = 3 cml = 5 cm

4. A cone has a radius of 6 inches and a height of 8 inches. Find its total surface area.

r = 6 inh = 8 in

5. The formula for the volume of a cone is V =  .

6. The formula for the lateral surface area of a cone is L.S.A. =  .

7. The formula for the total surface area of a cone is T.S.A. =  .

8. Which of the following represents the slant height of a cone?

a

The perpendicular distance from the apex to the base.

b

The distance from the center of the base to any point on the circumference.

c

The distance from the apex to any point on the circumference of the base.

d

The circumference of the base divided by 2π.

9. Doubling the radius of a cone will double its volume.

T

True

F

False