# Geometry

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What is the ratio measures of the in-radius, circum-radius and one of the ex-radius of an equilateral triangle?
(1) 1 : 2 : 5
(2) 1 : 3 : 5
(3) 1 : 2 : 3****
(4) 1 : 1.4142 : 2

• Geometry -

correct

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