Question

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.

Answer 1

Law of cosines
c^2 = a^2+ b^2 - 2 a b cos C

Answer 2

Because this is an isosceles triangle, B and C are both 27.4°

Answer 3

438