Volumes Of Spheres & Hemispheres

This lesson covers:

  1. How to find the volume of a sphere using the formula: Vol = 4/3 π r3
  2. How to find the volume of a hemisphere using the formula: Vol = 2/3 π r3

The sphere below has a radius of 5 cm. What is the volume of the sphere?

(Give your answer to 3 significant figures)

Diagram of a sphere with a radius of 5 cm.
524

cm3

cm3

0

/

1

The sphere below has a radius of 6.5 cm. What is the volume of the sphere?

(Give your answer to 3 significant figures)

Diagram of a sphere with a radius of 6.5 cm.
1150

cm3

cm3

0

/

1

The hemisphere below has a radius of 7 cm. What is the volume of the hemisphere?

(Give your answer to 3 significant figures)

Illustration of a hemisphere with a radius of 7 cm.
718

cm3

cm3

0

/

1

The sphere below has a diameter of 6 cm. What is the volume of the sphere?

(Give your answer to 3 significant figures)

Diagram of a sphere with a diameter of 6 cm.
113

cm3

cm3

0

/

1

The hemisphere below has a diameter of 9 cm. What is the volume of the hemisphere?

(Give your answer to 3 significant figures)

Illustration of a hemisphere with a 9 cm diameter.
191

cm3

cm3

0

/

1

The sphere below has a volume of 268 cm3. What is the radius of the sphere?

(Round your answer to the nearest cm)

Illustration showing a sphere with a volume of 268 cubic centimetres.
4

cm

cm

0

/

1

The hemisphere below has a volume of 1527 cm3. What is the radius of the hemisphere?

(Round your answer to the nearest cm)

Illustration of a hemisphere with a volume of 1527 cubic centimetres.
9

cm

cm

0

/

1

The volume of a sphere is 4500π cm3.


Calculate the radius of the sphere. 

15

cm

cm

0

/

1