Maths Olympiad Prep

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Geometry Difficulty 1.4 Junior Find the answer Canada

The coordinates of RR are (2,6)(2,6), as shown. After which of these translations will RR move to the point (7,0)(7,0)?

IMG0

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Solution

The xx-coordinate of (2,6)(2,6) is 55 less than the xx-coordinate of (7,0)(7,0), and so RR must be translated right 55. The yy-coordinate of (2,6)(2,6) is 66 more than the yy-coordinate of (7,0)(7,0), and so RR must be translated down 66. Thus, the translation right 55, down 66 will move R(2,6)R(2,6) to (7,0)(7,0).

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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.