Answer:
A. sin
Step-by-step explanation:
Hi there!
[tex]\sin\theta=\displaystyle\frac{opposite}{hypotenuse}[/tex]
[tex]\cos\theta=\displaystyle\frac{adjacent}{hypotenuse}[/tex]
[tex]\tan\theta=\displaystyle\frac{opposite}{adjacent}[/tex]
Given the angle A, the opposite side would measure 3 units, the adjacent side would measure 4 units and the hypotenuse would measure 5 units.
If the ratio is [tex]\displaystyle\frac{3}{5}[/tex], it means it is a ratio between the opposite side and the hypotenuse. Therefore, it is using the sine ratio.
[tex]\sin A=\displaystyle\frac{3}{5}[/tex]
I hope this helps!
