Question

Airplane trigonometry question

Answer 1

3.6

Explanation:

Tan=opp/adj

Tan^-1 (1.25/20)= 3.576~3.6

Answer 2

`\tan(\theta )=\cfrac{\stackrel{opposite}{1.25}}{\underset{adjacent}{20}} \implies \tan^(-1)(~~\tan( \theta )~~) =\tan^(-1)\left( \cfrac{1.25}{20} \right) \\\\\\ \theta =\tan^(-1)\left( \cfrac{1.25}{20} \right)\implies \theta \approx 3.6^o`

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