Edit MetaData
4 years, 10 months ago
A, B, C are points on the circumference of a circle. A, B, D is equilateral and AC is the diameter of the circle. find the ratio of perimeter of the abcd and length of AC.
4 years, 10 months ago
2 pi/3,
As Perimeter of ABCD is not the circumference of the circle, it't the length of two arc AB + BD = 4*pi*r/3 and AC = 2r. So required ratio = 2pi/3