Answer: 7/24
This is a Right Triangle (with a right angle=90 degrees), where the side opposite to this right angle is called the hypotenuse, and the other two sides or legs are called cathetus.
Now, with this type of triangles we can use trigonometric functions to find the other two angles.
For example, for angle A, the side opposite to it is called Opposite Cathetus (
), and the side adjacent to it is called the Adjacent Cathetus (
).
On the other hand, the trigonometric function Tangent is defined as:
(1)
Substituting the known values:
Which is finally the answer. Therefore the correct option is C