Measure the length of a curve by treating the curve as part of a complete circle. Once the diameter of the circle is known, it is possible to calculate the length of the curve.
Know MoreUse a straightedge tool to extend a line from either edge of the curve towards the center. Where these two lines meet is the radius of the circle. Multiply the radius by 2 to get the diameter.
Center a protractor in the middle of the circle so that the zero edge overlays the diameter line. Align the rotating edge of the protractor with the top of the curve. This is the angle of the curve.
Multiply the diameter by pi, and then multiply the solution by the angle. The result is the length of the curve.
Wrap a printable paper ring sizer from a jewelry company around your finger, and mark where the paper makes a complete circle to determine ring size. Do not wrap it too tightly to guarantee a comfortable fit.
Full Answer >A calibration curve is a mathematical tool used in analytical chemistry that provides a set of reference points that unknown chemical substances can be compared to. When analyzing certain substances, scientists are often unable to get a completely accurate understanding of the substance's makeup. With a calibration curve, chemists can compare known information about unknown substances to make estimates about its makeup and chemical properties
Full Answer >Use a protractor to measure the number of degrees in an angle. Place the protractor over the angle so that one line goes along the protractor's zero degrees line, the vertex is at the center of the zero degrees line, and the second line passes through another number on the protractor.
Full Answer >If the radius of the circle is known, the diameter formula is diameter=2R, where R equals the circle's radius. If the circumference of the circle is known, the diameter is found using diameter=C/Pi, where C is the circumference and pi is approximately 3.142.
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