Diagonal of the square = 12 √2 Side of the square = a
Perimeter of the square = 4 a = 2 d √2 4a = 2 ×12 √2×√2 4a = 48 a = 12 cm Radius of the circle = 6 cm Division of the median of the triangle = 2 : 1 = 9 cm Side of the equilateral triangle =