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Question

What is the volume of a prism with a triangular base of each side of 6 cm and height 10 cm?

A
155.88 cm3
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B
255.88 cm3
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C
455.88 cm3
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D
355.88 cm3
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Solution

The correct option is A 155.88 cm3
We know that volume of a prism = Area of base × height

The base is triangular and has each side of the same length, so the base is an equilateral triangle.

Now, area of the base (equilateral triangle)

=34×side2

=34×62

=15.588 cm2

Volume of the prism = base area × height

=15.588×10

=155.88 cm3

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