Question

The radius, r, of a circle is one-half of the length of its diameter, d.

How do I write this in paper?

Answer 1

If you mean how you write the equation for finding radius, there are a couple ways.
r = d/2
d/2 = r
r = d • 1/2
d • 1/2 = r
r = d • 0.5
d • 0.5 = r
In the end they all mean either half of d = r or r = half of d.

Answer 2

r=
`(1)/(2)`

Explanation:

It is given that r is the radius of the Circle and d is the length of the diameter of the circle.

As per the given information,

Radius of the circle= one-half of Diameter of the circle

r=
`(1)/(2)`

or we can also write radius of the circe= 0.5× diameter of the circle

r= 0.5 d

Hence, the correct answer is r=
`(1)/(2)`d