Turkish NMO First Round - 1999 P-29 (Geometry)
Source:
July 3, 2012
geometryratiotrapezoidpower of a point
Problem Statement
The length of the altitude of equilateral triangle is . A circle with radius , which is tangent to at its midpoint, meets other two sides. If the circle meets and at and , at the outer of , find the ratio .(A)\ 2\left(5 \plus{} \sqrt {3} \right) \qquad(B)\ 7\sqrt {2} \qquad(C)\ 5\sqrt {3} \\ \qquad(D)\ 2\left(3 \plus{} \sqrt {5} \right) \qquad(E)\ 2\left(\sqrt {3} \plus{} \sqrt {5} \right)