A) \[20\sqrt{3}\,m\]m
B) \[22\sqrt{3}\,m\]
C) \[22\sqrt{2}\,m\]
D) \[20\sqrt{2}\,m\]
Correct Answer: D
Solution :
If height of the triangle is h, then its area \[=\frac{1}{2}\times 40\times h\] \[=2c{{m}^{2}}h0\] Cost of this triangular land \[=Rs.\,125\times 20\,h\] \[\therefore \] \[125\times 20h=50,000\] or \[h=20\,cm\] \[AB=\sqrt{A{{D}^{2}}+B{{D}^{2}}}\] \[=\sqrt{{{h}^{2}}+{{20}^{2}}}\] \[=20\sqrt{2}\,cm\]You need to login to perform this action.
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