Problem:
The triangular plot of land lies between Aspen Road, Brown Road and a railroad. Main Street runs east and west, and the railroad runs north and south. The numbers in the diagram indicate distances in miles. The width of the railroad track can be ignored. How many square miles are in the plot of land
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Answer Choices:
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B.
C.
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E.
Solution:
The area of is square miles. The area of square miles. The shaded area is the area of minus the area of , which is square miles.
The base of is miles. The altitude of is miles. The area of is squares miles.
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Answer: .
The problems on this page are the property of the MAA's American Mathematics Competitions