21
9.
For each of the following figures, find the (total)
area of the shaded region(s), where 0 is the
centre of the circle.
2 cm
(a)
5 cm
10 cm
4 cm
*O
15 cm
+ 12 cm-
- 14 cm
(b)
18 cm
0.6 cm
18 cm
35 cm
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