Answer:
Cos 25° = [tex]\frac{adjecent}{hypontnuse}[/tex].
Step-by-step explanation:
Given : A right angled triangle with angle 25° and side = 12 cm
To find : Which trigonometric function would be used to find the length of this triangle's hypotenuse.
Solution : We have given that adjacent side = 12 cm ,
By the trigonometric ratio
Cos (theta) = [tex]\frac{adjecent}{hypontnuse}[/tex].
Therefore, Cos 25° = [tex]\frac{adjecent}{hypontnuse}[/tex].
Therefore, Cos 25° = [tex]\frac{adjecent}{hypontnuse}[/tex].
