Page 180 - Mathematics Coursebook

End of unit review

End of unit review

1 What units would you use to measure the area of:
a a hockey pitch b a book cover?
2 Copy and complete the following area conversions.
2
2
a 8 cm = mm b 5 m = cm c 420 mm = cm 2
2
2
2
3 Work out the area and perimeter of each of these rectangles.
a b c 8 mm
5 cm 3 m
5 cm
6 cm 7 m
2
4 A rectangular room has an area of 24 m .
The length of the room is 6 m.
Work out: a the width of the room b the perimeter of the room.
5 a Work out the area of these green shapes.
Make sure you write the correct
i ii 20 mm units with your answers.
5 cm 5 mm
11 cm
15 mm
5 cm 9 mm

12 cm
b Work out the perimeter of the shape in part ai.

6 Work out: 3 cm
a the volume of the cuboid
b the surface area of the cuboid.
6 cm
7 This is part of Petra’s homework. 8 cm

Question A cuboid has a length of 15 mm, a width of 8 mm and a height of
12 mm.
What is the volume of the cuboid?
What is the volume of the cuboid?
Solution Volume = 15 + 8 + 12
= 35 mm

Petra has got the solution wrong.
Explain the mistakes that Petra has made and work out the
correct answer for her.
8 a Work out the surface area of this cuboid. 2.5 m
b Show how to use estimation to check your
answer to part a. 3.8 m

7.1 m

18 Area, perimeter and volume 179