In this video we will learn how to find correct area of plot or plan in chain surveying when chain used is missing some link or is too short.
Question: A plan of an old survey plotted to a scale of 10 m to 1 cm carried a note stating that the chain 20 m used was 0.8 links (16 cm) too short. It was also found that the plan had shrunk so that a line originally 10 cm long now measures 9.77 cm only. The area of a plot on the available plan was found to be 58.2 cm2. What is the correct area of the plan in hectares.
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