Maths Olympiad Prep

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, 2002

Algebra Difficulty 1.0 Junior Find the answer Canada

Which of the following statements is not true?

(A) A quadrilateral has four sides. (B) The sum of the angles in a triangle is 180180^\circ. (C) A rectangle has four 9090^\circ angles. (D) A triangle can have two 9090^\circ angles. (E) A rectangle is a quadrilateral.

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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. Solutions are the publisher's, linked not copied.