MathDB

415

Part of 1985 All Soviet Union Mathematical Olympiad

Problems(1)

ASU 415 All Soviet Union MO 1985 regular pentagon remaining area

Source:

8/5/2019
All the points situated more close than 11 cm to ALL the vertices of the regular pentagon with 11 cm side, are deleted from that pentagon. Find the area of the remained figure.
pentagonareasgeometry