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Problem 11

Geometry Difficulty 1.0 Find the answer CEMC Fermat · Canada · 2021

A rectangle has width 2 cm and length 3 cm.

The area of the rectangle is

2 cm 2\text{2 cm 2}
9 cm 2\text{9 cm 2}
5 cm 2\text{5 cm 2}
36 cm 2\text{36 cm 2}
6 cm 2\text{6 cm 2}

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

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Official solution

A rectangle with width 2 cm and length 3 cm has area 2 cm 3 cm = 6 cm 2\text{2 cm 3 cm = 6 cm 2}.

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