1. Fractional inch dimensions are commonly used standards for parts and tools, while decimal inches are more commonly used on engineering drawings for arithmetic convenience.
2. Fractions can be converted to decimal equivalents by dividing the numerator by the denominator.
3. In the US, decimal inches are expressed with two to four decimal places and rounded according to standard practices. The metric system instead uses millimeters as the unit of measurement.
Q.NO#01: The plan of an old survey plotted to a scale of 10 m to 1 cm was found to have shrunk so that a line originally 10 cm long was found to measure 9.8 cm.
There was also a note on the plan that the 30 m chain used in the survey was 0.03 m too short.If the area of the plan measured now with a planimeter is 96.04 cm2 .Determine the true area of the survey?
Q.NO#01: The plan of an old survey plotted to a scale of 10 m to 1 cm was found to have shrunk so that a line originally 10 cm long was found to measure 9.8 cm.
There was also a note on the plan that the 30 m chain used in the survey was 0.03 m too short.If the area of the plan measured now with a planimeter is 96.04 cm2 .Determine the true area of the survey?