SOLUTION: In the city of Phoenix, Arizona, Grand Avenue runs diagonally across the west side of the city. What is the area of the region bounded by Grand Avenue, Dunlap Avenue, and 35th Ave

Algebra ->  Trigonometry-basics -> SOLUTION: In the city of Phoenix, Arizona, Grand Avenue runs diagonally across the west side of the city. What is the area of the region bounded by Grand Avenue, Dunlap Avenue, and 35th Ave      Log On


   



Question 1013525: In the city of Phoenix, Arizona, Grand Avenue runs diagonally across the west side of the city. What is the area of the region bounded by Grand Avenue, Dunlap Avenue, and 35th Avenue? Round your answer to the nearest mile.
http://diagnostic.achievementseries.com/cdn//1/_graphics_math_16865/0365df58-14ec-45a3-aa51-ae95444cdc13.gif
What are they asking me to do? I can't fit this into the area of a triangle formula...

Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
I think you have to assume that it is a right triangle...one whose area is
A = (1/2)bh = (1/2)(5)(5) = 12.5 mi^2 (or 13 rounded up)