sin(20) = 0.3420 (approx).
20% = 72 degrees
I believe about 20 degrees.
The 3rd angle is 80 degrees
If the angle is x radians, then tan(x) = 1/20 = 0.05 So x = tan-1(0.05) = 0.04996 radians = 2.86 degrees (approx)
Trigonometry is really useful in life. If you want to be and engineer, architect, or builder, trig. is useful. If you say that a right triangle has an angle degree of 30 degrees, and the side opposite the angle is 10 ft, you can conclude that the hypotenuse is 20 ft. Trig. also states that any right triangle with a 45 degree angle has a ratio of .707106781184562. the ratio( sine) is 1 divided by the square root of 2, of the square root of 2 divided by to. Trust me, it's easier that it sounds
sine-1(0.3420201433) = 20 degrees
Triangles don't have sines, but angles do. In your right triangle . . . -- the sine of the right angle is 1.000 . -- The sine of the smallest angle is 0.600, so it's about 36.87 degrees. -- The sine of the remaining angle is 0.800, so it's about 53.13 degrees.
An angle whose measure is 20 degrees!
to construct an angle of 20 degrees all you have to do is to trisect an angle of 60degrees
The sine of 20° is approximately 0.342.
100
It is a right angle triangle and its 3rd angle is 70 degrees.
The key is to recognize that "the angle of INCIDENCE is equal to the angle of REFLECTION", for an 'Elastic' collision. So the answer is 20 degrees.
It is: 160 degrees
Between 15 and 20 degrees...
20 degrees
Exterior angle = 20 degrees Interior angle = 160 degrees