1.

ABCD is a square of side 2 cm. If each vertex as centre and 1 cm as radius, four circles are drawn, then the radius of the circle which touches these four circles externally is … (1) √2 - 1(2) √2 + 1(3) √2(3) 1 / √2

Answer»

Correct option is (2) √2 + 1 



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