Track / Stage 1 / 186 of 320 #186 of 2604

Problem 186

Geometry Difficulty 1.2 Multiple choice CEMC Gauss (Grade 7) · Canada · 2015

The perimeter of the figure shown is

Pick one

Official solution

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

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