SOLUTION: A yard in the shape of a square measures 18ft on each side. A triangular area with a height of 4ft and a base of 9ft is dug up for a flower bed. How much yard area is left over?

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Question 703952: A yard in the shape of a square measures 18ft on each side. A triangular area with a height of 4ft and a base of 9ft is dug up for a flower bed. How much yard area is left over?
Answer by DrBeeee(684) About Me  (Show Source):
You can put this solution on YOUR website!
Just subtract the area of the triangle from the area of the square.
Let x = the area left over.
Then
(1) x = 18^2 - (1/2)*9*4 or
(2) x = 324 - 18 or
(3) x = 306
Answer: The area of the yard without the flower garden is 306 square feet.