An old map was plotted to a scale of 40 m to 1 cm. Over the years, this map has been shrinking and a line originally 20 cm long is only 19.5 cm long at present. Also a 20 m chain was 5 cm too long. If the present area of the map measured by planimeter is 125.50 cm², then determine the true area of land surveyed.
An old map was plotted to a scale of 40 m to 1 cm. Over the years, this map has been shrinking and a line originally 20 cm long is only 19.5 cm long at present. Also a 20 m chain was 5 cm too long. If the present area of the map measured by planimeter is 125.50 cm², then determine the true area of land surveyed.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![An old map was plotted to a scale of 40 m to 1 cm.
Over the years, this map has been shrinking and a line
originally 20 cm long is only 19.5 cm long at present.
Also a 20 m chain was 5 cm too long. If the present
area of the map measured by planimeter is 125.50
cm², then determine the true area of land surveyed.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7ced090b-9c01-4d93-a8ac-640e38be3cf8%2Fed56a38a-3fce-470b-94a8-6b0d063c23c4%2F4bkm8xp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An old map was plotted to a scale of 40 m to 1 cm.
Over the years, this map has been shrinking and a line
originally 20 cm long is only 19.5 cm long at present.
Also a 20 m chain was 5 cm too long. If the present
area of the map measured by planimeter is 125.50
cm², then determine the true area of land surveyed.
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