r= 9 so diameter is 2x the radius =18 cm
radius 5 cm diameter 10 cm
The radius (radii) of a circle is 1/2 of the diameter. The radius of a circle with a 6.2 cm diameter is 3.1 cm.
The diameter is always double the radius so in this case, it is 18cm
10 cm (diameter is double the radius)
radius = 18/2 = 9 cm
radius = 18/2 = 9 cm
Radius is half the diameter. 18 / 2 = 9 Answer: 9.0 cm
r= 9 so diameter is 2x the radius =18 cm
To calculate the radius is very easy, the formula is d/2 where d is diametre. therefore according to d/2 = 9cm/2 which is equals to 4.5 cm Result : the radius of a circle with a diameter of 9 cm is 4.5 cm.
diameter = radius × 2 → radius = diameter ÷ 2 = 10 cm ÷ 2 = 5 cm
The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm
radius 5 cm diameter 10 cm
Diameter = Radius * 2 In this case, radius = 8 cm so diameter = 16 cm
If the diameter is 12 cm the radius is 6 cm.
The diameter of a circle is double the radius. So a circle with a radius of 7 cm has a diameter of 14 cm.
The diameter would be 14 cm, since the diameter is twice the radius.