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Mensuration Answers

The document provides answers to exercises from the Cambridge O Level Mathematics Second Edition Student Book, specifically focusing on mensuration. It includes detailed solutions for multiple exercises, listing missing lengths, perimeters, and areas for various geometric shapes. All answers are attributed to the authors of the book.

Uploaded by

Muhammad Muntasir Zaman
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56 views2 pages

Mensuration Answers

The document provides answers to exercises from the Cambridge O Level Mathematics Second Edition Student Book, specifically focusing on mensuration. It includes detailed solutions for multiple exercises, listing missing lengths, perimeters, and areas for various geometric shapes. All answers are attributed to the authors of the book.

Uploaded by

Muhammad Muntasir Zaman
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Cambridge O Level Mathematics Second edition

Student Book answers

All answers were written by the authors.

40 Mensuration
Exercise 40.1
1 a) 10 cm

b) 38 cm

2 a) Missing lengths: 8 cm and 9 cm; Perimeter 72 cm

b) Missing lengths: 10 cm, 6 cm and 7 cm; Perimeter 74 cm

c) Missing lengths: 120 m and 90 m; Perimeter 660 m

d) Missing lengths: 3.4 cm, 2 cm, 8.2 cm, 2 cm, 3.4 cm and 3.1 cm;
Perimeter 44.2 cm

3 a) 11.4 cm

b) 12.8 cm

c) 11.2 cm

4 5 cm

5 30 cm

6 1 cm by 29 cm; 2 cm by 28 cm; 3 cm by 27 cm; 4 cm by 26 cm;


5 cm by 25 cm; 6 cm by 24 cm; 7 cm by 23 cm; 8 cm by 22 cm;
9 cm by 21 cm; 10 cm by 20 cm; 11 cm by 19 cm; 12 cm by 18 cm;
13 cm by 17 cm; 14 cm by 16 cm; 15 cm by 15 cm

Exercise 40.2
1 16.92 cm2

2 6.76 m2

3 15.023 cm2

4 36 m2

5 a) 2.34 km2

b) 6.2 km

6 49 cm2

7 15 cm

8 a) 444 m2

b) 22.2 kg

c) 9

Cambridge O Level Mathematics Second Edition 1


© Brian Seager, Michael Handbury, Jean Matthews, Heather West, John Jeskins 2023
Cambridge O Level Mathematics Ch40 Student Book answers

Exercise 40.3
1 a) 12 cm2

b) 20 m2

c) 35 cm2

d) 31.5 m2

e) 30.38 cm2

f) 12.6 m2

g) 7.5 m2

h) 16.38 cm2

i) 24 m2

2 a) 40 m2

b) 45 cm2

c) 49.5 m2

d) 17.5 m2

e) 13.76 cm2

f) 9.86 m2

g) 8.16 m2

h) 11.25 cm2

i) 19.09 m2

3 a) 24 cm2

b) 4.8 cm

Exercise 40.4
1 a) 40 cm2

b) 42 cm2

c) 30 cm2

d) 34.2 cm2

e) 37.6 cm2 to 1 d.p.

f) 23.8 cm2

Cambridge O Level Mathematics Second Edition 2


© Brian Seager, Michael Handbury, Jean Matthews, Heather West, John Jeskins 2023

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