Answer:
r= [tex]\frac{1}{2}[/tex]
Step-by-step 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= [tex]\frac{1}{2}[/tex]
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=[tex]\frac{1}{2}[/tex]d
