Robinson Tuition
Year 8 · Key Stage 3 · free KS3 maths worksheet

Surface area and volume

12 original questions, 42 marks. Type your answers below for an instant mark and a score (algebra in any equivalent form, e.g. 2sqrt(3) or 2√3), or print the worksheet, mark it with the answers sheet, and use the solutions to see every step written out by hand.

Worksheet PDFWorked solutions PDFAnswers PDF

The questions

1
  1. Diagram a shows the net of a 3D solid. Write down the name of the solid.
  2. Diagram b shows part of the net of a cuboid that measures 3 cm by 2 cm by 1 cm, drawn on a centimetre grid. Two faces are missing. On the grid, draw the two missing faces to complete the net.
ab
3 marks
Show answer
a) triangular prism b) a 1 cm by 2 cm rectangle on the right of the 3 by 2 face, and a 3 cm by 2 cm rectangle above the top 3 by 1 face
2

A cuboid measures 5 cm by 3 cm by 2 cm.

Work out the total surface area of the cuboid.

State the units of your answer.

3 marks
Show answer
62 cm²
3

The cross-section of a prism is a trapezium.

The parallel sides of the trapezium are 6 cm and 10 cm, and the perpendicular distance between them is 4 cm.

The length of the prism is 15 cm.

Work out the volume of the prism.

10 cm6 cm15 cm4 cmDiagram NOT accurately drawn
3 marks
Show answer
480 cm³
4

A cylinder has a radius of 5 cm and a height of 12 cm.

Work out the volume of the cylinder.

Give your answer correct to 3 significant figures.

3 marks
Show answer
942 cm³
5

A garden pond is a cuboid 2.5 m long, 1.2 m wide and 0.6 m deep.

The pond is filled with water from a hose. Water flows from the hose at 15 litres per minute.

Work out how long it takes to fill the pond. Give your answer in hours.

1 m3 = 1000 litres

2.5 m0.6 m1.2 mDiagram NOT accurately drawn
3 marks
Show answer
2 hours
6

The diagram shows a triangular prism. The cross-section is a right-angled triangle with sides 6 cm, 8 cm and 10 cm. The prism is 15 cm long.

  1. Work out the volume of the prism.
  2. Work out the total surface area of the prism.
6 cm8 cm15 cm10 cm
4 marks
Show answer
a) 360 cm³ b) 408 cm²
7

A tin of beans is a closed cylinder with radius 4 cm and height 11 cm.

  1. A paper label covers the curved surface of the tin. Work out the area of the label.
  2. Work out the total surface area of the tin.

Give your answers correct to 1 decimal place.

4 cm11 cm
4 marks
Show answer
a) 276.5 cm² b) 377.0 cm²
8

A cylindrical water butt has a radius of 25 cm and a height of 80 cm.

Work out the number of litres of water the water butt holds when it is full.

Give your answer to the nearest litre.

1 litre = 1000 cm3

4 marks
Show answer
157 litres
9

A cube has a total surface area of 150 cm2.

Show that the volume of the cube is 125 cm3.

4 marks
Show answer
Face area = 150 ÷ 6 = 25 cm², so side = 5 cm and volume = 5³ = 125 cm³
10

A skate ramp is made of concrete. It is a triangular prism. The cross-section is a right-angled triangle with base 3 m and height 1.2 m. The ramp is 2.5 m wide.

Concrete costs £95 per m3.

Work out the cost of the concrete for the ramp.

3 m1.2 m2.5 mDiagram NOT accurately drawn
3 marks
Show answer
£427.50
11

A closed wooden box is a cuboid measuring 40 cm by 25 cm by 20 cm.

Amira varnishes all 6 faces of each box.

One tin of varnish covers 5000 cm2.

Amira has 3 tins of varnish.

Work out the greatest number of boxes Amira can varnish completely.

4 marks
Show answer
3
12

A hall has 8 cylindrical pillars.

Each pillar has a radius of 0.25 m and a height of 3 m.

Ben paints the curved surface of every pillar.

One tin of paint covers 8 m2.

Work out the number of tins of paint Ben must buy.

4 marks
Show answer
5

Your score

Answer the questions above and your score appears here.

Every question here is original and written by Robinson Tuition. It follows the Key Stage 3 programme of study; Year 9 sheets end with extension questions for top sets.

All Year 8 topics