SOLUTION: I have a yard that is a triangle. My sides measure 110 ft by 120 ft by 150 ft. If 1 bag of fertilizer covers 1200 square ft. how many bags will I need to cover the yard?

Question 21529: I have a yard that is a triangle. My sides measure 110 ft by 120 ft by 150 ft. If 1 bag of fertilizer covers 1200 square ft. how many bags will I need to cover the yard?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Use Heron's formula to find the area of your triangular yard.
where: S = semi-perimeter of the triangle S=190 ft) and a, b, & c are the lengths of the sides of the triangle.

square feet. Divide this by 1200 sq.ft. per bag.

You will need 6 bags of fertilizer
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