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The area of the incircle of an equila...

The area of the incircle of an equilateral triangle of side 42 cm is `22sqrt(3)\ c m^2` (b) `231\ c m^2` (c) `462\ c m^2` (d) `924\ c m^2`

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The area of the circle that can be inscribed in a square of side 10 cm is (a) 40pi\ c m^2 (b) 30pi\ c m^2 (c) 100\ pi\ c m^2 (d) 25\ pi\ c m^2

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