I'm not sure exactly what this question is asking, but I will attempt to answer. An angle on the unit circle is created by drawing a straight line from the origin to a point on the circle. The x-coordinate of a point corresponds to the cosine of the angle. For example: cos(90o) = 0 The y-coordinate of a point corresponds to the sine of the angle. For example: sin(270o) = -1
.09
sin(20) = 0.3420 (approx).
I believe about 20 degrees.
The 3rd angle is 80 degrees
Obtuse if that's not the type of answer your looking for then GOOGLE it
20% of a 360o circle is 72o
A
A
L
64
L perhaps
5
The empirical formula for a compound containing 20% hydrogen and 80% carbon would be CH4, which is methane. This is because the ratio of carbon to hydrogen in methane is 1:4, which corresponds to the given percentages.
200 ppm is 0.02%
The angle of reflection is equal to the angle of incidence, so if the angle of incidence is 20 degrees, then the angle of reflection will also be 20 degrees.
1.75