Question
Download Solution PDFIf the fore bearing of a line AB is 30° and that of line BC is 100°, then the included angle between the lines is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Included Angle = Back Bearing of previous line - Fore Bearing of next line
Calculation:
Given
| Lines | F.B. |
| AB | 30∘ |
| BC | 100∘ |
The included angle between given lines AB and BC is ∠ B.
Included angle B (∠ B) = BB of line AB - FB of line BC
B.B of line AB = FB of line A + 180∘ = 30∘ + 180∘
B.B of line AB = 210∘
Included angle B (∠ B) = 210∘ - 100∘
Included angle B (∠ B) = 110∘
Last updated on Mar 4, 2025
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