SI UNIT Usually, at a normal classroom size, the tool to use would probably be to measure it in either yards or meters. TOOL A yard stick
If you mean what units, that would be meters.
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.
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.
You divide a length of one polygon by the corresponding length in the other polygon. Any length will do, as long as you use the corresponding length in both.
A ruler or tape measure.
Meters
Square feet (length x width).
steel rulemeasuring tapelaser measuring deviceruleyardstick...
The metric unit of the meter would be the appropriate measure of the area of classroom. Calculating area involves multiplying the length (in meters) of the classroom's length and width. Area of the classroom would be in square (^2) meters.
If you mean what units, that would be meters.
meeters?
a ruler
Meter stickI'm thinking you would use a tape measure
Psychology can be used as an educational tool by teaching about how our psychology affects the society and the world we live in. There are many ways to use psychology as an educational tool.
A tape measure.
Every school is different. The layout of every school is also different. So you will need to find the distance from your classroom to the principal's office in your own school. Ask your teacher's permission to use a tape measure or yardstick to measure the hallway length between the two points.