Option C is correct.
Trigonometry
The branch of mathematics which concerned with the specific function of angles and their application.
Given
Right triangle DEF.
To find
Tangent of F.
How to Calculate tangent of F?
We know the tangent,
[tex]\rm tan \theta = \dfrac{Perpendicular}{Base}[/tex]
Perpendicular = 40
Base = 9
Then
[tex]\rm tan \theta = \dfrac{40}{9}[/tex]
Here the tangent of F is [tex]\dfrac{40}{9}[/tex].
Thus, option C is correct.
More about the trigonometry link is given below.
https://brainly.com/question/6904750
