A) \[492.86\,\,c{{m}^{2}}\]
B) \[429.68\,\,c{{m}^{2}}\]
C) \[892.86\,\,c{{m}^{2}}\]
D) \[426.45\,\,c{{m}^{2}}\]
Correct Answer: A
Solution :
Area of remaining sheet= Area of rectangle \[\left\{ 40\times 30-\pi \times {{\left( \frac{30}{2} \right)}^{2}} \right\}c{{m}^{2}}\] \[=\left\{ 1200-\frac{22}{7}\times \frac{900}{4} \right\}c{{m}^{2}}\] \[\Rightarrow \]\[\left\{ \frac{8400-4950}{7} \right\}c{{m}^{2}}\] \[=\frac{3450}{7}c{{m}^{2}}=492.86c{{m}^{2}}\]
You need to login to perform this action.
You will be redirected in
3 sec
