MathDB
Problems
Contests
National and Regional Contests
Serbia Contests
Serbia Team Selection Test
1976 Yugoslav Team Selection Test
Problem 1
Problem 1
Part of
1976 Yugoslav Team Selection Test
Problems
(1)
radius of circle in polygon
Source: Yugoslav TST 1976 P1
5/29/2021
Prove that for a given convex polygon of area
A
A
A
and perimeter
P
P
P
there exists a circle of radius
A
P
\frac AP
P
A
ā
that is contained in the interior of the polygon.
combinatorics
geometry
combinatorial geometry