A) \[115.5\text{ }c{{m}^{2}}\]
B) \[228.5\text{ }c{{m}^{2}}\]
C) \[154\text{ }c{{m}^{2}}\]
D) None of these
Correct Answer: A
Solution :
(a): \[\frac{1}{2}\times \pi \times {{(7)}^{2}}+2\left[ \frac{1}{2}\times \pi \times {{\left( \frac{7}{2} \right)}^{2}} \right]\] Area of larger semicircle + 2 (area of smaller semicircle)
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