The base of a prism is in the shape of an equilateral triangle. If the perimeter of the base is 18 cm and the height of the prism is 20 cm, then what is the volume (in cm3) of the prism?
A) 60√3 B) 30√6 C) 60√2 D) not know
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180√3
Step-by-step explanation:
Perimeter of the base = 18
3×side = 18 => side = 6 cm
volume of the prism= base area × height
= √3/4 *(6)^2 * 20 = 180√3 cm^3
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