The easy way to find the length of a pencil is to use a ruler to measure it. A "small" ruler might not make it, but a "regular" one foot ruler will do the job nicely.
Any metric unit would do. But it might be easier to pick something smaller than the length of the pencil, like a centimeter, or a millimeter.
grams definitely...a pencil weighs more than a paper clip and a paper clip weighs about a gram.
Yes you have to use the pythagorean theorm to find the length of a right triangle. But you must subtract A2 from C2 then square root the answer.
If you know the length of the sides but not the diagonal, you can use the Pythagorean Theorem.
You should use a meter stick to measure the length of a soccer pitch.
Centimetre
A ruler or tape measure.
Any metric unit would do. But it might be easier to pick something smaller than the length of the pencil, like a centimeter, or a millimeter.
It's gonna be inches/centimeters.
A Pencil
pencil
A Pencil
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
centimeter
A ruler would do the trick.
Centimeters
The centimetre.