SOLUTION: Two roads intersect at right angles. At this corner, there is a triangular parking lot that extends 120 feet along one road and 75 feet along the other road. If blacktop cost $2.

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Question 205672: Two roads intersect at right angles. At this corner, there is a triangular parking lot that extends 120 feet along one road and 75 feet along the other road. If blacktop cost $2.50 per square foot, find all cost of black topping the parking lot.
SHOW ALL WORK. INCLUDE A DIAGRAM. EXPLAIN EACH STEP OF YOUR ANSWER.
Answer by Targetweek(62) About Me  (Show Source):
You can put this solution on YOUR website!
1. First Draw and label your diagram
- i can't cause this is a computer...
2. The area of a triangle is...
A=%281%2F2%29bh
3. The base of the triangle is 120ft and the height is 75 ft (or vice versa)
4. So plug them into the equation
- A+=+%281%2F2%29%28120%29%2875%29
- A+=+4500ft%5E2
5. At a cost of $2.50 per sqft...
- %282.50%2F%281ft%5E2%29%29%2A%28%284500ft%5E2%29%2F1%29+=+11250
6. so the answer is $11,250