Maths Olympiad Prep

Library / /75 of 121

, 2022

Geometry Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

The lengths of the sides of pentagon ABCDEABCDE are as follows: AB=16AB = 16 cm, BC=14BC = 14 cm, CD=17CD = 17 cm, DE=13DE = 13 cm, AE=14AE = 14 cm. Five circles with centres at the points A,B,C,D,EA, B, C, D, E are drawn so that each circle touches both of its immediate neighbours. Which point is the centre of the largest circle?

(A) AA (B) BB (C) CC (D) DD (E) EE

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.