The diagram shows a quadrant of radius 2, and two touching semicircles. The larger semicircle has radius 1. What is the radius of the smaller semicircle?
Select one option, then click Submit.
8
4 + 4\sqrt{2}
6 + 3\sqrt{2}
8 + 2\sqrt{2}
12
Select an option, then submit.
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Senior Mathematical Challenge 2014 (2014)
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