25
A, B, C and D are points on a circle, such that ABD is an equilateral triangle and AC is the diameter of the circle. What is the ratio of the perimeter of the quadrilateral ABCD to the perimeter of the circle?
- A√2 + 1 ∶ π
- B3 + √2 ∶ 2π
- C√3 + 1 ∶ π
- D√3 + 4 ∶ 3π
Answer not set