MathDB
PRMO 2015. p12.

Source:

April 9, 2024
geometryincirclerectangle

Problem Statement

12.12. In a rectangle ABCDABCD AB=8AB=8 and BC=20.BC=20. Let PP be a point on ADAD such that BPC=90o.\angle{BPC}=90^o. If r1,r2,r3.r_1,r_2,r_3. are the radii of the incircles of triangles APB,APB, BPC,BPC, and CPD.CPD. what is the value of r1+r2+r3?r_1+r_2+r_3 ?