[Problem of the day][数学挑战][Geometry][几何][2][Big and small circle] Mathematics Geometry
There are two identical blue circles and two identical orange circles arranged symmetrically in a larger red circle, as shown.
The circles are tangent to each other where they touch.
If the radius of the red circle is $R$ then what is the radius of one of the orange circles?
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casperyc的马甲 2020-5-11引用 2楼