Posted by Rony on Saturday, April 10, 2010 at 1:56pm.
The Vietnam Veterans Memorial in Washington, D.C., is made up of two walls, each 246.75 feet long, that meet at an angle of 125.2°. Find, to the nearest foot, the distance between the ends of the walls that do not meet.

math(advanced algebra&trigonometry)  Damon, Saturday, April 10, 2010 at 2:28pm
Law of cosines
c^2 = a^2+ b^2  2 a b cos C

math(advanced algebra&trigonometry)  Anonymous, Sunday, April 11, 2010 at 2:37pm
Because this is an isosceles triangle, B and C are both 27.4°

math(advanced algebra&trigonometry)  Ryan, Wednesday, October 29, 2014 at 11:39pm
438
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