Maths Olympiad Prep

Library / CEMC Cayley /416 of 470

CEMC Cayley, 2010

Geometry Difficulty 3.0 AMC 10/12 Find the answer Canada

A rectangular piece of paper measures 17 cm by 8 cm. It is folded so that a right angle is formed between the two segments of the original bottom edge, as shown. What is the area of the new figure?

(A) 104 cm2104 \text{ cm}^2 (B) 81 cm281 \text{ cm}^2 (C) 72 cm272 \text{ cm}^2 (D) 168 cm2168 \text{ cm}^2 (E) 64 cm264 \text{ cm}^2

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.