Maths Olympiad Prep

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, 2015

Geometry Difficulty 1.2 Junior Find the answer Canada

The perimeter of the figure shown is

Pick one

Solution

The length of the side not labelled is equal to the sum of the two horizontal lengths that are labelled, or 2+3=52+3=5. Thus, the perimeter of the figure shown is 5+5+2+3+3+2=205+5+2+3+3+2=20.

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.