Transum Software

Surface Area

Calculate the surface areas of the given basic solid shapes using standard formulae.

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This is level 2; Find the surface area of a variety of cuboids. The diagrams are not to scale.

1

What is the surface area of this cuboid with dimensions 6cm, 8cm and 3cm?

Shape

cm2

2

What is the surface area of this cuboid with dimensions 14cm, 9cm and 12cm?

Shape

cm2

3

What is the surface area of this cuboid with dimensions 4.1cm, 13cm and 3cm?

Shape

cm2

4

What is the surface area of this cuboid with dimensions 6.6cm, 8.2cm and 3cm?

Shape

cm2

5

What is the surface area of a cuboid shaped box of length 34.5cm,
width 30cm and height 40cm?

Shape

cm2

6

Find the surface area of this cuboid with the dimensions shown in the diagram.

Shape

cm2

7

Find the surface area of this cuboid with the dimensions shown in the diagram.

Shape

cm2

8

Find the surface area of a cube if the length of each side is 14.3cm.
Give your answer to the nearest square centimetre.

Shape

cm2

9


A cuboid has a length twice it's width and a height three times its length. If its length is 11mm find its surface area in square millimetres.


cm2

10


The surface area of a cube is 150m2. Find the length of its edges.





cm2

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This is Surface Area level 2. You can also try:
Level 1 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Level 9

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

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Description of Levels

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Level 1 - Find the surface area of shapes made up of cubes.

Level 2 - Find the surface area of a variety of cuboids.

Level 3 - Find the surface area of a variety of prisms.

Level 4 - Find the surface area of a variety of cylinders.

Level 5 - Find the surface area of a variety of cones.

Level 6 - Find the surface area of a variety of pyramids.

Level 7 - Find the surface area of a variety of spheres.

Level 8 - Find the surface area of composite shapes.

Level 9 - Mixed, more challenging questions involving surface area.

Volume - Find the volume of basic solid shapes.

Surface Area = Volume - Can you find the ten cuboids that have numerically equal volumes and surface areas? A challenge in using technology.

Exam Style Questions - A collection of problems in the style of GCSE or IB/A-level exam paper questions (worked solutions are available for Transum subscribers).

More on 3D Shapes including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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Help Video

Surface Area Formulae

Cube: \(6s^2\) where \(s\) is the length of one edge.

Cuboid: \(2(lw + lh + wh)\) where \(l\) is the length, \(w\) is the width and \(h\) is the height of the cuboid.

Cylinder: \(2\pi rh + 2\pi r^2\) where \(h\) is the height (or length) of the cylinder and \(r\) is the radius of the circular end.

Cone: \(\pi r(r+l)\) where \(l\) is the distance from the apex to the rim of the circle (sloping height) of the cone and \(r\) is the radius of the circular base.

Cone: \(\pi r(r+\sqrt{h^2+r^2})\) where \(h\) is the height of the cone and \(r\) is the radius of the circular base.

Square based pyramid: \(s^2+2s\sqrt{\frac{s^2}{4}+h^2}\) where \(h\) is the height of the pyramid and \(s\) is the length of a side of the square base.

Rectangular based pyramid: \(lw+l\sqrt{\frac{w^2}{4}+h^2}+w\sqrt{\frac{l^2}{4}+h^2}\) where \(h\) is the height of the pyramid, \(l\) is the length of the base and \(w\) is the width of the base.

Sphere: \(4\pi r^2\) where \(r\) is the radius of the sphere.

Prism: Double the area of the cross section added to the product of the length and the perimeter of the cross section.

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