Cambridge International Mathematics

206 Mensuration (length and area) (Chapter 9)

Review set 9A

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1aConvert: i 3 : 28 km to m ii 755 mm to cm iii 32 cm to m

b A staple is made from a piece of wire 3 cm long. How many staples can be made from a roll

of wire 1200 m long?

2 Find the perimeter of:

abc

3 Find the area of:

abc

4 The diameter of a car tyre is 50 cm.

a How far does the car need to travel for the tyre to complete one revolution?

b How many revolutions does the tyre complete if the car travels 2 km?

5 Determine the angle of a sector with arc length 32 cm and radius 7 cm.

6 Find a formula for the i perimeterP ii areaAof:

ab

7 A circle has area 8 m^2. Find:

a its radius b its circumference.

8 By finding the area of triangle ABC in two

different ways, show that d=^6013.

12 m

3m

6m

8cm

5cm

5m

5m

6m

3m

2m

3.6 m

1.8 m

acm

hcm

2mx

4mx

13 cm

12 cm

5cm

A

BC

dcm

2cm

10 cm

IGCSE01

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Y:\HAESE\IGCSE01\IG01_09\206IGCSE01_09.CDR Thursday, 2 October 2008 11:55:28 AM PETER