Finding trigonometric function The short side is a, the long side is B, the hypotenuse is C, the known long side is 200, BC is 5 degrees, find the short side a How to express it in the form?

Finding trigonometric function The short side is a, the long side is B, the hypotenuse is C, the known long side is 200, BC is 5 degrees, find the short side a How to express it in the form?

a=200*tan5º