HELP ! plz !homework !

mariag0113

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Joined
Sep 17, 2011
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4
:confused: find the base of the triangle of a triangular prism with a height of 8 yards, altitude of 4 yards , and a volume of 16 cubic yards ?!
;)
 
We're NOT talking about a pyramid or tetrahedron, right? This is a right-prism with triangular cross section, possibly standing on a triangular end (but that's not particularly necessary).

Area of Triangle is (1/2)*base*height. We are given height = 4 (I'll let you worry about the units), so we have: Area = 2*base

Volume of such a prism = BaseArea * Height. We are given Volume = 16 and Height = 8, so we have 16 = BaseArea * 8

Thus, BaseArea = 2.

You do the rest.

Note: It is quite unclear how "height" and "altitude" are arranged. I had to guess, picking "altitude = altitude of base triangle".
 
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