Basic Engineering Mathematics, Fifth Edition

190 Basic Engineering Mathematics

598

(d)

x

4.30

438

x

(e)

6.0

(f)

538

x

7.0

Figure 21.24

2. Findtheunknownsidesandanglesintheright-
   angled triangles shown in Figure 21.25. The
   dimensions shown are in centimetres.

5.0

3.0

A

B

(a) C

Figure 21.25

8.0

4.0

E

D

F

(b)

(c)

H

G

J

288

12.0

(d)

278

15.0

K

L

M

N (e)

P

O

4.0

648

(f)

R S

Q

5.0

418

Figure 21.25