The area of a semi-circle of radius 7 c.m. is
7 cm2
777 cm2
77 cm 2
7777 cm2
Explanation:
Area of semi-circle =$\dfrac{\pi r^{2}}{2}=\dfrac{1}{2}\times\dfrac{22}{7}\times7\times7$
$=77cm^{2}$
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