A) \[20\text{ }c{{m}^{2}}\]
B) \[21\text{ }c{{m}^{2}}\]
C) \[19\text{ }c{{m}^{2}}\]
D) \[18\text{ }c{{m}^{2}}\]
Correct Answer: B
Solution :
(b): Required area is the difference of areas of rectangle and sum of areas of two sectors.
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