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Question
Find the value of θ if tan θ = 0.0720
Solution
| 0' | 6' | 12' | 18' | 24' | 30' | 36' | 42' | 48' | 54' | Mean difference | ||||||||
| 0.0° | 0.1° | 0.2° | 0.3° | 0.4° | 0.5° | 0.6° | 0.7° | 0.8° | 0.9° | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| 49 | 0.7547 | |||||||||||||||||
tan θ = 0.0720
= 0.0717 + 0.0003
= 4° 6′ + 1′
= 4° 7′
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