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Question

The inradius of an equilateral triangle of side 63

A
3
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B
23
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C
33
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D
43
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Solution

The correct option is A 3
The inradius of a triangle is given by:
r = =1/6sqrt(3)a
Here a = 6√3 is the side of the triangle.
Hence, the answer is 3 units


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