Library / CEMC Gauss (Grade 7) /315 of 462

CEMC Gauss (Grade 7), 1999

Geometry Difficulty 2.0 Junior Find the answer Canada

In the diagram, line segments meet at $90^\circ$ as shown. If the short line segments are each $3$ cm long, what is the area of the shape?

(A) $30$ (B) $36$ (C) $40$ (D) $45$ (E) $54$

Figure for this problem

We don't reproduce this publisher's solutions. Their own solution is here — work the problem first.

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: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.