Question 108
In $\triangle ABC$, $\angle A = 15^\circ$ and $BC = 4$. What is the radius of the circle circumscribing $\triangle ABC$?
MathNet 2008-part-03 — 165 problems (EN–VI) Question 108
Math Olympiad Vault · MathNet 2008-part-03 — 165 problems (EN–VI)