Question
A circle is inscribed in a square an equilateral
triangle of side 10 √2 cm is inscribed in that circle the length of the diagonal of the square is.Solution
Let the side of the square be a Then the radius of circle=a/2 Given- Side of equilateral triangle = 10√2cm the radius of the circle =Side of an equilateral triangle a/2 = 10 √2/√2 a=20 cm Diagonal of square= side √2 =20√2cm 
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