A) 462 sq. m
B) 642 sq. m
C) 426 sq. m
D) 246 sq. m
Correct Answer: A
Solution :
Required area = Outer area ? inner area \[=\pi \,(14+7)\,(14-7)sq.\,m\] \[=\frac{22}{7}\times 21\times 7=462\,\text{sq}\text{.}\,\text{m}\]You need to login to perform this action.
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