Surface area of a hemisphere Revision Card

AI generatedGeometry and measuresKS3 / GCSE

Surface area of a hemisphere.

Count every exposed face. State whether a flat base is included.
For a prism, use both end faces and the rectangular side faces.
Use squared units. A cone’s curved area uses slant height, not perpendicular height.

Example 1

Find the total surface area, including every base. Give an exact answer.

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.

Find the total surface area, including every base. Give an exact answer.

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.

Question 1

Find the total surface area, including every base. Give an exact answer.

Check answer

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.

Question 2

Find the total surface area, including every base. Give an exact answer.

Check answer

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.

Question 3

Find the total surface area, including every base. Give an exact answer.

Check answer

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.

Question 4

Find the total surface area, including every base. Give an exact answer.

Check answer

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.

Question 5

Find the total surface area, including every base. Give an exact answer.

Check answer

Curved area is 2πr²; include the flat circular base, πr², for total surface area.

Substitute the labelled dimensions. Keep π exact when it appears.