2007-05-22 02:28:14 · 6 answers · asked by Ba'kon 1 in Science & Mathematics ➔ Mathematics
It depends in what form you have the angle to start with. If it is in radians, you multiply by 180 / pi to convert it to degrees.
If you have a trigonometric ratio, such as sin(x) = 0.417, then you need a calculator, and you use a function probably written on the key as sin^(-1).
There are a few angles, such as 30, 45, 60, 90 degrees for which you can determine exact values of the trigonometric ratios by using geometric properties of triangles.
If you want to measure an angle on a drawing or on a map, you need a protractor.
2007-05-22 02:34:16 · answer #1 · answered by Anonymous · 1⤊ 0⤋
What do you already know? Is this angle in a right triangle? If so, and you know two of the side lengths, you can use basic trig. If it is not a right triangle, you could use the law of sines, if you know one of the sides and two of the angles.
If the angle is complementary or supplementary to another angle, you could find it with subtraction.
If it an angle of a regular polygon, you can calculate an exterior angle and then from that the interior angle.
We need more information.
2007-05-22 09:33:32 · answer #2 · answered by TychaBrahe 7 · 2⤊ 0⤋
SOH CAH TOA - trigonometry
cosine rule - trigonometry
geometry has many was of solving this one...
I'm sure there are more practical ways to find the degrees of an angle... like a protractor ^_^
2007-05-22 09:34:44 · answer #3 · answered by dark_massiah 3 · 1⤊ 0⤋
You'll have to say more about what you know about the angle before we can answer.
2007-05-22 09:31:39 · answer #4 · answered by ZeroCarbonImpact 3 · 1⤊ 0⤋
using the protractor of your geometry box
very simple isn't it
2007-05-22 09:33:05 · answer #5 · answered by priya 2 · 1⤊ 0⤋
Use a protractor.
2007-05-22 09:32:21 · answer #6 · answered by RcknRllr 4 · 1⤊ 0⤋