A) \[75\text{ }{{m}^{2}}\]
B) \[76\text{ }{{m}^{2}}\]
C) \[\text{77 }{{m}^{2}}\]
D) \[\text{189 }{{m}^{2}}\]
E) None of these
Correct Answer: C
Solution :
Explanation For each of the semicircle diameter \[= \,7 m.:\] \[\therefore \,\,radius =\,\,\frac{7}{2} = 3.5 m.\] Area of each of the semi-circle \[=\,\,\,\frac{1}{2}\pi \,\,\times \,\,{{\left( 3.5 \right)}^{2}}\] \[=\,\,\frac{1}{2}\times \frac{22}{7}\times 3.5\times 3.5= 19.25{{m}^{2}}\] Area of shaded region \[= \,4 \times 19.25 = 77 {{m}^{2}}.\]You need to login to perform this action.
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