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UKMT Junior Kangaroo, 2022

Geometry Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

Both of the shapes shown in the diagram are formed from the same five pieces, a 5 cm by 10 cm rectangle, two large quarter circles and two small quarter circles. What is the difference in cm between their perimeters?

(A) $2.5$ (B) $5$ (C) $10$ (D) $20$ (E) $30$

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