Radius = Diameter/2 Diameter = 2* Radius
Well, the diameter would be 24, so the circumference would be π (pi, 3.14) times the diameter.24 x 3.14 = 75.36Apply this to all your math when using circumference. BTW if it is telling you the DIAMETER, just multiply by pi to get your answer.
The area is ~452.3 cm2
A radius is one half of a diameter so divide by two to get from a diameter to a radius. Or you can multiply the radius by 2 to get to the diameter.
A radius is half of a diameter. Example Diameter:4 Radius:2
The diameter is twice the radius and so it is 24cm
the diameter of a circle is double the radius so if the radius is 12 cm then the diameter is 24 cm
12 cm A diameter is twice as long as the radius of a circle. D = 2r D = 2(6cm) = 12cm
Radius: 24/2 = 12 cm
The diameter of circle A is 12cm so its radius must be 6cm.
The radius of a circle is the distance from the centre to the edge. The diameter is the distance right across the circle through the centre. So the diameter of a circle is always twice its radius. So if the radius of a circular CD is 6cm, the diameter is twice this - 12cm.
The circumference of circle with radius 12cm is 75.4cm
The circumference of a circle if the diameter is 12cm is 37.7cm
Close to 12cm
The radius of the sector with an angle of 27 degrees and arc of 12cm is: 25.46 cm
Radius = Diameter/2 Diameter = 2* Radius
12pi cm