The bearings of the lines AB and BC are 146¬∞ 30' and 68¬∞ 30'. – McqOptions

MCQOPTIONS

1.	The bearings of the lines AB and BC are 146¬∞ 30' and 68¬∞ 30'. The included angle ABC is
A.	102¬∞
B.	78¬∞
C.	45¬∞
D.	none of these.
Answer» B. 78¬∞

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