alright, once again i have a trig questions, in a tangent, the angle:
A=a/b
a being the side opposite of angle A and b being the adjacent side of a.
so, the tangent of an angle measuring 30 degrees is
tan=.577350269
what is that number?! is it measuring in radians? if so, it would turn out to be:
.577350269 x (180/pi)=33.07973373 degrees.
help?
2007-02-23 13:05:06 · 3 answers · asked by Bill s 2 in Science & Mathematics ➔ Mathematics
For a right triangle of sides a, b, and c; where c^2 = a^2 + b^2, the ratio a/b = tan(theta) and theta is the angle subtended by c and a in this case or c and b for b/a = tan(90 deg - theta).
tan(theta) = sin(theta)/cos(theta) = a/c//b/c = a/b, which is useful to remember.
As someone said earlier, a tangent (and sine and cosine) are just ratios of the appropriate sides (a, b, and c) of a right triangle. So there are no units...there are no radians, meters, degrees...just a number.
2007-02-23 13:30:40 · answer #1 · answered by oldprof 7 · 0⤊ 0⤋
Tangent is a trig ratio that = opposite over adjacent.
Your question is not clearly stated.
Are you looking for tangent 30 degrees?
Why did you multiply (180/pi) in this case?
When you are looking for an angle, you must use the inverse key on your calculator.
Guido
2007-02-23 21:24:14 · answer #2 · answered by Anonymous · 0⤊ 0⤋
tan is a ratio, it does not have units.
If you have tan, and want the angle, you have to use arctan function or table.
2007-02-23 21:08:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋