Question 108919
n A-frame cabin has a triangular front with a base of 30 ft and a height of 20 ft. If the front is to be glass that costs $3 per square foot, what will the glass cost? 
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you should know the formula for the area of a triangle A = {{{1/2}}}*b*h
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They give you the base and the height
A = {{{1/2}}}*30*20
A = 300 sq ft
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Find the cost of the glass:
Cost = 300*3 = $900
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That wasn't so hard, was it?