Answer:
Option 3. cos x°= r/q
Explanation:
The figure shows a right angle triangle in which three sides are given.
Height = p units, Base = r units and hypotenuse = q units
Two angles other than right angle are x° and y°.
We have to find the ratio of r and q is represented by.
Since we know cosine of any angle = Adjacent side/ Hypotenuse = Base / hypotenuse = r/q
cos x = r/q
Answer will be Option 3. cos x°.