A) \[400\,c{{m}^{2}}\]
B) \[120\,c{{m}^{2}}\]
C) \[140\,c{{m}^{2}}\]
D) \[330\,c{{m}^{2}}\]
Correct Answer: D
Solution :
Let ABCD is a rectangular piece of canvas. \[\Delta \,LBM\]is the triangular piece to be cut off. Required area = area of rectangle ABCD - area of \[\Delta \,LBM\] \[=25\times 16-\left( \frac{1}{2}\times 14\times 10 \right)=400-70=330c{{m}^{2}}\]You need to login to perform this action.
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