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Problem 660

AMC 10/12, early questions

Geometry Difficulty 3.0 Find the answer UKMT Grey Kangaroo · United Kingdom · 2015

Rachel added the lengths of three sides of a rectangle and got $44$ cm. Heather added the lengths of three sides of the same rectangle and got $40$ cm. What is the perimeter of the rectangle? (A) $42$ cm (B) $56$ cm (C) $64$ cm (D) $84$ cm (E) $112$ cm

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