What will be the radius of a circle whose diameter is 36 cm?
Given that
The length of the diameter of a circle = 36 cm
We know that, radius of a circle = Diameter2
On substituting the values we get:
Radius of circle = 362=18 cm
What will be the diameter of a circle of radius 18 cm?
What will be the radius of a circle whose area is 9 times the area of another circle with diameter 8cm?