If the diameter of the circle is 12cm, find the radius of the circle.
Given diameter of the circle, d=12cm
As we know radius is the half of the diameter of the circle.
Radius of the circle, r=d2=122=6cm
Hence, radius of the circle is 6cm.
Find the radius of the circle if the diameter is:
12cm
If the radius of the circle is 4.5cm, find the diameter of the circle.
Find the diameter of a circle if the radius is:
5.5cm
Find the radius of a circle if the diameter is 21cm