Cambridge International Mathematics

234 Mensuration (solids and containers) (Chapter 11)

EXERCISE 11A.1

1 Find the surface area of a cube with sides:

a 3 cm b 4 : 5 cm c 9 : 8 mm

2 Find the surface area of the following rectangular prisms:

abc

3 Find the surface area of the following triangular prisms:

abc

4 Find the surface area of the following square-based pyramids:

abc

5 Find the surface area of the following prisms:

abc

6 A metal pencil box is 20 cm by 15 cm by 8 cm high. Find the total area of metal used to make the

pencil box.

7 Tracy owns 8 wooden bookends like the one illustrated.

a Calculate the total surface area of the bookends.

b

8 Calculate the area of material needed to make this tent.

Do not forget the floor.

4cm

10 cm

7cm

40 mm

16 mm

50 mm

42 m

95 m

3m

10 m

2m 8m

20 cm

6cm

8cm 6cm

4cm 9cm

16 cm

8cm

4cm

4m

12 m

25 m

2m

3m

8m

5m

5m

10 m

12 cm

10 cm 5cm

4cm

10 m 60 cm

13 m

12 cm

9cm

3m 3.5 m

2m

If ml of varnish covers an area of cm , how

much varnish is needed to coat all bookends?

50 2000

8

2

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Y:\HAESE\IGCSE01\IG01_11\234IGCSE01_11.CDR Tuesday, 14 October 2008 3:01:51 PM PETER