SOLUTION: how many square yards of fabric are needed to make a triangle team banner base is 6ft and whose height is 6ft

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Question 386624: how many square yards of fabric are needed to make a triangle team banner base is 6ft and whose height is 6ft
Answer by gwendolyn(128) About Me  (Show Source):
You can put this solution on YOUR website!
This question is very simple if you know what formula to use.
Because you are making a banner and need a certain amount of fabric, you are trying to find the area of the triangle that will act as the banner. The formula to find the area of a triangle is below:
let A=the area of the triangle
let h=the hight of the triangle
let b=the base of the triangle
A=%281%2F2%29%2Ah%2Ab
This formula works because a triangle is always half of a rectangle, and the formula for a rectangle is:
A=h%2Ab
Now, we can easily plug in the length of the height and base to find the triangle's area.
A=%281%2F2%29%2Ah%2Ab
A=%281%2F2%29%2A6%2A6
A=%281%2F2%29%2A36
A=18ft%5E2
The area is 18ft%5E2, but we need to know the area in square yards.
There are 3 feet per yard, so there are 9 square feet per square yard.
Therefore, if you divide our answer in square feet by 9, you will get our answer in square yards. 18 divided by 9 is 2.
There are 2 square yards of fabric needed.