Question 45
A field of the shape of a circular sector needs to be fenced using a wire of length $d$. What is the maximal area of that field? (Ilko Brnetić)
MathNet 2015-part-02 — 191 problems (EN–VI) Question 45
Math Olympiad Vault · MathNet 2015-part-02 — 191 problems (EN–VI)