Ex9-1 A 30m steel tape is corrected for temperature to ± 2^o C, a random error of ± 0.03m results. Comparison with a standard tape may expose an error of ± 0.02 m and error in measurement of tension with ± 3kg may result in an error of ± 0.01 m, what is the possible error result in measurement under this condition. Find the amount of error involved in a distance of 300m measured by the tape.