Question

Beinggreat78 this is ittttt :P

Answer 1

They are related because the radius is half of the diameter.

Answer 2

radius is the distance from the centre of a circle to any point on its circumference and diameter of the circle is a straight line which halves the circle from the center.

`c = 2\pi \: r`

`r = (c)/(\pi \: r)`

therefore, the radius is half the diameter.

answer= option 1