A) \[~300\,c{{m}^{2}}\]
B) \[~180\,c{{m}^{2}}\]
C) \[~126\,c{{m}^{2}}\]
D) \[306\,c{{m}^{2}}\]
Correct Answer: D
Solution :
In right angled\[\Delta \Alpha \Beta C,\]using Pythagoras theorem \[{{(AC)}^{2}}={{(9)}^{2}}+{{(40)}^{2}}=1681\] \[\Rightarrow \]\[AC=41\,cm\]You need to login to perform this action.
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