Yes, the ruler does need to be straight when finding or measuring the length of a country on a map. If the distance curved, you can use a string and the ruler to measure the length.
If you want to measure the length, use a ruler.
the measure of a straight-line distance between two points is called length.
You don't. Diameter is a measure of length, not area.
False
Length is usually a measure of distance in a straight line. Girth is the distance around a [solid] object.
Lines have length, often measured in centimeters, inches, or other such units.
Multiply the Length by the Width by the Height. Measure one edge. Cube the number.
P = 2L + 2W P = 2(L + W) P/2 = L + W If the perimeter is given and you know one of the side measure length (i.e mL), then you can find the measure length of the other sides. If you know the measure length of L, then the measure length of W is P/2 - L = W,and vice versa.
Measure the length of the diameter in suitable units!
use a ruler!!!!how do you use a ruler with a semicircle EDIT: Assuming you can measure the length of the straight side.. to find the perimeter - treat it as a whole circle, and find the circumference through multiplying the diameter (straight edge) by Pi. Then - divide that figure by 2, and add on the length of the straight side ! Snakester1962 (Supervisor)
no. measure is finding the length or any other physical quantity. calculating is using formulas to find the answer to a question. hope this helps.
The straightedge can only be used to draw a straight line, or check to see if a surface is flat, but cannot measure length. A ruler can be used to draw a straight line or check for flatness, and a ruler can also measure length because it has evenly spaced markes denoting inches and centimeters.