about the size of the top of some big salt grinders
Diameter: 2*4 = 8 cm
Its diameter is about 4 cm rounded
if a radius is 5cm the diameter is 10cm rule- you double the radius
8cm. The radius is always half the diameter.
Diameter = 17/pi cm
Diameter: 2*4 = 8 cm
The circumference = Pai x Diameter = 3.14 x 4 = 12.56 cm
Radius = 1/2 of diameter = 4 cm
8 cm
2 cm
The area of a circle (in square hectometers) if the diameter is 4 cm is: 0.001257 hectometers2
diameter =2*radius =2*2 cm = 4 cm
Its radius is: 4/2 = 2 cm
Radius = Diameter / 2 In this case, diameter = 8 cm so radius = 4 cm
12.57 square cm.
It is 30/4 = 7.5
Its diameter is about 4 cm rounded