200 Mensuration (length and area) (Chapter 9)
2 Calculate the heighthof the following figures:
a
Area=24cm^2
b
Area=36cm^2
c
Area=47m^2
3 Find the area shaded:
abc
de f
gh i
hcm
8cm 10 cm
hcm
11.2 m
hm
7.6 m
14 m
10 m
6m 5m
3m
9m
6m
18 m
10 m
4m
12 cm
10 cm
6cm
3cm
14 cm
18 cm
3cm
3cm
7cm
7m
2m 6m
2cm
3cm
10 cm
6cm
5cm
4cm
2cm 6cm
4 A photograph is 6 cm by 4 cm and its border is 12 cm by 10 cm. Calculate the visible area of the
border.
5 Instant lawn costs$15per square metre. Find the cost of covering a 5 : 2 mby 3 : 6 m area with instant
lawn.
6 A 4 : 2 mby 3 : 5 m tablecloth is used to cover a square table with sides of length 3 : 1 m. Find the area
of the tablecloth which overhangs the edges.
7 A square tile has an area of 256 cm^2. How many tiles are needed for a floor 4 m£ 2 : 4 m?
8aFind the area of a rhombus which has diagonals of length 12 cm and 8 cm.
b One diagonal of a rhombus is twice as long as the other diagonal. If the rhombus has area 32 cm^2 ,
find the length of the shorter diagonal.
9 The area of trapezium ABCD is 204 cm^2.
Find the area of triangle DBC. AB
DC
17 cm
15 cm
10 cm
36 cm
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Y:\HAESE\IGCSE01\IG01_09\200IGCSE01_09.CDR Monday, 13 October 2008 10:42:54 AM PETER