A = 452.4mm2
If the diameter is 12mm then the radius is 6mm. The area of a circle is pi X r2. Therefore pi X 36 mm2 = about 113.0973 mm2 = area of the circle. Don't forget units!! pi is about 3.1416.
The circumference is 75.4mm
Area of a circle = pi*r2 , where pi = 3.14 and r is the radius of the circle. We have diameter(d) = 12mm so, radius(r) = d/2 = 6mm On putting the values we get Area = 3.14*62 = 3.14*36 = 113mm2
12mm - half the diameter.
The radius is half of the diameter, and 1/2 of 24 is 12. The radius is 12mm.
d=2r, d=2x12mm=24mm
A right cylinder having a base radius of 12mm and a height of 60mm has a lateral area of approximately 4523.89mm2
The area of a circle with a radius of 14.4 is 651.4
Area of a circle = pi*radius squared
The area of a circle of radius 21 is 1386
The area of a circle if the radius is 9m 254.5m2
The radius of a circle with the area of 36 is 3.385