explain the relationship between a circle's radius and diameter. how can you solve for radius, when given the diameter? how can you solve for diameter, when given the radius?

r = d/2

d = 2r

Step-by-step explanation:

The relationship between the radius and diameter of a circle can be explained by the formula

Radius r = diameter d / 2

That's the radius is equal to half of the diameter.

You can solve for the radius of a circle whenever the diameter of the circle is given by dividing the diameter by 2.

Also, since radius is equal to the half of a diameter,

r = d/2, diameter can be solved by multiplying the radius by 2.

That's diameter = 2r

Where r = radius of the circle