A line that is drawn straight through the midpoint of a circle and that has its end points on the circle border is called the diameter (d) Half of the diameter, or the distance from the midpoint to the circle border, is called the radius of the circle (r). The circumference of a circle is found using this formula: C=π⋅D or C=2π⋅R
3:6 3,6,9 6,12,18,24 9:24. ~~ ~~ Yes it is equivalent because if you divide 9:24 with 3 it will equal 3:6 and if you keep adding with 3:6 buy it's self it will eventually aqualung 9:24
