Mathematics Form 1 Answers
(b) The data is not displayed accurately (c) (i) RM1 600 Formative Practice 13.2
because the scale on the vertical axis (ii) 20%
used is not uniform. The increase in 1. (a) Yes
temperatures from the 2 minute to 2. (a) (i) (b) No
nd
the 4 minute appears more than the Number Frequency (c) No
th
th
increase in temperatures from the 6 of books (d) Yes
minute to the 8 minute. The change 1 5
th
in temperature from the 2 minute 2. (a) Right-angled triangle
nd
to the 4 minute is 8°C whereas the 2 7 (b) Right-angled triangle
th
change in temperature from the 6 3 5 (c) Obtuse-angled triangle
th
minute to the 8 minute is 16°C. Use (d) Acute-angled triangle
th
a uniform vertical scale to prevent 4 4 3. Yes
misinterpretation of data. 4. Yes
(c) The data is not displayed accurately 5 3
because total percentage of the
three sectors in the pie chart is not (ii) 50%
equal to 100%. The solution step of (b) (i) Wendy Summative Practice 13
the angle of sectors or the label of (ii) 4
sectors has to be calculated again (iii) 75 000 Section A
and then corrected. 1. B 2. B 3. D 4. C 5. B
(c)
Number of Drinks Sold Section B
Summative Practice 12 160 1. (a) 3, 4, 5; 6, 8, 10;
Section A 120 (choose any suitable Pythagoras
1. B 2. A 3. B 4. C 5. B 100 triplets)
6. A Number of cups 140 (b)
80
Section B 60
40
1. (a) 2013; 100 20
(b) 40% 0
Chocolate
Tea
2. (a) Coffee Types of drinks Milk
2. (a) 2
(b) Length of sides of
Chapter
13 The Pythagoras Theorem triangles
3.5 cm, 12 cm, 12.5 cm 3
(b) (i) 20% Formative Practice 13.1 7 cm, 15 cm, 17 cm
(ii) 40 pairs 1 cm, 2.4 cm, 2.6 cm 3
1. (a) PR
Section C (b) SU 3. (a) (i) 5
1. (a) (i) 7 (c) AC (ii) 15
(d) c
(ii) 25%
2. (a) PR = PQ + QR 2 (b) (i) True
2
2
2
(b) AB = AC + BC 2 (ii) False
2
(b) Number Angle (c) b = a + c 2
2
2
Club of of (d) r = p + q 2 Section C
2
2
members sector 3. (a) 5 cm 1. (a) (i) 25 cm 2
(b) 24 cm
Photography 18 90° (ii) 28 cm
(c) 8 cm
(d) 2.6 cm (b) 17 cm
Consumer 21 105° (c) 17 cm
4. (a) 4.10 cm
Arts 24 120° (b) 6.56 cm 2. (a) (i) 8 cm
(c) 11.07 cm (ii) 96 cm 2
Chess 9 45° (d) 5.77 cm (b) 9.6 cm
5. 15.81 cm (c) 3.676 m
Number of Members by Club 6. 25 cm 3. (a) 30 cm
7. 50 cm (b) 225 cm 2
Chess (c) 42.43 m
Photography 8. 21.19 m
45° 9. 15.30 m
Art
120° 105° TIMSS
Consumer A
217
F1 Answers.indd 217 02/03/2023 1:33 PM
NOTES
218
F1 Answers.indd 218 02/03/2023 1:33 PM
Format 190mm X 260mm Extent : 224pg (10.46mm) Confirmed (All 2C/ 60gsm) Status CRC Date 6/3
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