Apps. and Interpretation for IBDP Maths Ebook 1 | Page 378

Your Practice Set – Applications and Interpretation for IBDP Mathematics
Chapter 14
Exercise 48
48.1 (a) 3 cm
(b)
(c)
3
12�
cm
2
75.4 cm
48.2 (a) 3.43 cm
(b)
(c)
3
84.7 cm
2
111cm
48.3 (a) 3.32 cm
(b) 13.4 cm
(c)
2
140 cm
48.4 (a) 9 cm
(b) 40 cm
(c)
Exercise 49
49.1 (a)
(b)
49.2 (a)
(b)
3
1080�
cm
3
4670 m
2
754 m
3
1470 cm
2
653 cm
49.3 (a) 30 m
(b)
2
5650 m
49.4 (a) 2 mm
(b)
Exercise 50
50.1 (a)
(b)
50.2 (a)
(b)
50.3 (a)
(b)
50.4 (a)
(b) 3:1
3
71.2 mm
4 3
2.23�
10 cm
16.5 cm
3 3
7.37 � 10 cm
12.1 cm
3
4900�
cm
1
9.02�
10 cm
4 3
2.06�
10 cm
Exercise 51
51.1 (a)
(b)
51.2 (a)
51.3 (a)
51.4 (a)
52.1 (a)
2
2830 cm
17.1 cm
2
2460 cm
(b) 23.3%
2
2940 cm
(b) 19.6%
2
704 cm
(b) 47.7%
Exercise 52
(b)
(c)
3
2090 cm
2
942 cm
22.2 cm
(d) 81.2
(e)
52.2 (a)
(b)
(c)
2
2880 cm
3
26000 cm
2
6720 cm
44.2 cm
(d) 61.1
(e) 52.0
52.3 (a) 22.6
(b)
(c)
(d)
(e)
2
18100 cm
3
161000 cm
52.4 (a) 36.9
(b) 59.4 cm
(c)
5
R�
H
12
H � 76.2 cm , R � 31.7 cm
3
65856 cm
(d) 1:0.630
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