IBHM 673 720.PDF


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Chapter 1

Exercise 1

1 a 135° b 20° c 72°
p
7p
3p
2 a
b
c
6
6
4
4 a 30.7cm2

b 4.71m2

˛

6 a 66.8cm
11 9.30cm

d 150° e 105° f 22.5° g 110° h 114.6° i 85.9° j 229.2° k 206.3° l 22.9°
7p
4p
7p
2p
3p
d
e
f
g
h
3 a 0.611 b 1.75 c 5.24 d 1.40 e 2.30
4
3
18
5
10
c 489cm2

˛

b 293cm
12 30cm

c 177mm

1
2

b 0.174

2 a

1
2

b

1
2

c

c 1

p 5p
,
3 3

1
22
23
2

d

˛

5 311m

2

˛

e

1
2

22

e

p 2p
,
3 3

b u

1

f

c u

2

9 46.9m

˛

b 99.1cm

c 295cm
2

˛

d 113mm
10 200°

2

˛

1

f

22

1

g

22

g

h 0.737

i 1

h 0

c x° 41.8°, 138.2°

p 3p
,
4 4

23
2

j 0

d x° 80.4°, 279.6°
p 11p
,
6 6

e u

d No Solution

e x° 22.0°, 158.0°

f u 0.290, 2.85

f x° 55.2°, 304.8°

g u 1.20, 5.08

h u 0.775, 2.37

Exercise 3

b 20.7cm2
˛

c 160cm2
˛

6 a x 5.82cm

10 a x 6.07cm

b x 22.7m

14 A 39.4°, B 46.5°, C 94.1°
17 21.6m

18 57.9°

Chapter 1
b 120°

d 26.0m2

2 8220m2

˛

b x 6.37cm

b x° 127.7°

1 a 180°

23
2

d 0.996

7 a x° 32.4°

16 312km

b 8.55m

8 52.2cm

˛

15 a 17.9cm

b x° 70.5°, 289.5°

Chapter 1
1 a 24cm2

14 7:2

b 2670cm

2

Exercise 2

3 a x° 30°, 150°
4 a u

5 a 6.28cm

˛

7 a 126cm

13 99.5cm

Chapter 1
1 a

d 2430cm2

˛

f 4.85

c x 7.64m

8 44.7° or 135.3°
c p 381mm

3 a 84.9cm2

˛

b 120cm2

˛

d n 7.35m

4 63.7m3

˛

˛

e a 14.2mm

9 10.75° or 169.25°
d t 10.7cm

15 a x 7.64m

11 2.63m

b x° 50.9°

12 a 59.6°

c x° 83.8°

b 143.2°

d x 15.8cm

13 68.7°
e x 16.9m

19 204 cm2
˛

Exercise 4
c

p
2

d 90°

e 360°

2 ay

f 120°
b

g 180°

h

p
2

i 36°

j 3°
c

y

d

y

y
1

1
360
0

120

240

x

0

1

x

f

300 x

360

4
0
4

180

360 x

y
3
1

120

x
0
1

1

2 e y

0

1
360

360
x

673