To continue a survey line AB past an obstacle, a line BC 100 m long wa – McqOptions

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1.	To continue a survey line AB past an obstacle, a line BC 100 m long was set out perpendicular to AB and from C angles BCD and BCE were set out at 60 and 45 respectively. Determine the lengths which must be chained off along CD in order that ED may be in AB produced?
A.	100 m
B.	200 m
C.	300 m
D.	400 m
Answer» C. 300 m

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