For finding accurate volume of a pencil use a vernier calliper, which measures diameter up to two significant figures.
For finding volume of a pencil you will need radius (r) and length (L) of the pencil.
V = 3.14 r²L
To estimate the volume of a pencil, one can model it as a cylinder, as it has a circular cross-section and a uniform length. The volume can be calculated using the formula ( V = \pi r^2 h ), where ( r ) is the radius of the pencil's diameter and ( h ) is the length. By measuring the diameter with a ruler and dividing by two to find the radius, and then measuring the length, you can substitute these values into the formula to obtain the volume.
You can use millimeters.
Grams
Centimetre
circle does not have volume
To find the volume of a box, you would use the formula Volume = Length x Width x Height. Measure the length, width, and height of the box in units (such as centimeters or inches), then multiply these values to calculate the volume of the box.
The volume of a pencil can be calculated by multiplying its length by its cross-sectional area. The cross-sectional area of a pencil is typically circular, so you would use the formula for the volume of a cylinder: V = πr^2h, where r is the radius of the pencil and h is the length. However, since a pencil is not a perfect cylinder due to its hexagonal shape, the actual volume may vary slightly.
1. Find lead 2. Put in pencil Btw most pencils use graphite
You can use millimeters.
Grams
you cant measure a pencil in milliliters. how about grams?
Millimeters
cm for a reg. hb pencil it's about 1 cm
This should be solved in two steps. 1) Use the formula for the area of a cube, and solve for the length of a side of the cube. 2) Using this length, it is easy to find out the volume, with the formula for the volume of a cube.
You could use a triple beam balance.
A Pencil
Centimetre