Question 670860: You are making a large triangular pennant for your school football team. The vertices of the triangle are (0,0), (0,50), and (70,20) where the coordinates are measured in inches. How many square feet of material will you need to make the pennant?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! You are making a large triangular pennant for your school football team. The vertices of the triangle are (0,0), (0,50), and (70,20) where the coordinates are measured in inches. How many square feet of material will you need to make the pennant?
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2 points are on the y-axis --> b = 50
h = 70
Area = b*h/2 = 1750 sq inches
= 1750/144 sq feet
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That's the area of the pennant.
Realistically, you have to use 50*70 sq inches and cut the pennant from it.
--> 3500/144 sq ft.
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