Lay a ruler across the coin and make sure it measures from one edge through the center to the other edge. Read the diameter from the ruler.
A vernier caliper should be used to measure the diameter of a steel ball.
Yes, a calibrated ocular micrometer can be used to measure the diameter or length of a field or object. Essentially, that is all that it is used for.
It depends on the size of the coin!
Internal diameter.
The diameter of a penny (British decimal coin - 1p) is 20.3 millimetres. Therefore, other coins will also be measured in millimetres
Lay a ruler across the coin and make sure it measures from one edge through the center to the other edge. Read the diameter from the ruler.
You can measure the diameter, then divide that by 2.
Tape measure
A vernier caliper should be used to measure the diameter of a steel ball.
Yes, a calibrated ocular micrometer can be used to measure the diameter or length of a field or object. Essentially, that is all that it is used for.
Think of the coin as a cylinder. The volume is the area of the base X the height. The area of the base is Pi X radius squared. So if you know the radius or the diameter of the coin, which you can measure, and the height which you can also measure, than PiXr2Xh will give you the volume.
fermi
Fermi
A set of calipers.
Vernier caliper
No current circulating British coin has a diameter of exactly 3 cm. The closest is the £2 coin with a diameter of 2.84 cm.