A) \[320\sqrt{3}\]cubic cm
B) \[180\sqrt{3}\]cubic cm
C) \[150\sqrt{3}\]cubic cm
D) \[300\sqrt{3}\]cubic cm
Correct Answer: B
Solution :
(b): Area of the base \[=\frac{\sqrt{3}}{4}\times {{\left( side \right)}^{2}}\] \[=\frac{\sqrt{3}}{4}\times 6\times 6=9\sqrt{3}\]sq.cm \[\therefore \] Volume of prism =Area of base \[\times \] height \[=9\sqrt{3}\times 20=180\sqrt{3}\]cu. cm
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