cosine(59 degrees) = 0.51504 (rounded)
cos(50) = 0.6428 (rounded)
59 degree
The number 1.414... (square root of 2) is two times the cosine or sine of a 45 degree angle. The reason for this is that for a 45 degree angle, the two sides are cosine and sine, they are equal, and if you solve using the Pythagorean theorem with a hypotenuse of 1, the two sides are each (21/2)/2.
A 59-degree angle is classified as an acute angle because it measures less than 90 degrees. Acute angles are characterized by their sharpness and are commonly found in various geometric shapes and figures.
90 - 31 = 59 degree
60 degrees = 0.5 1/2
at a 45 degree angle, or pi/4
45 degree
cos(50) = 0.6428 (rounded)
Cos(65 deg) = 0.4226 approx.
As a decimal: 0.866 As a fraction: √(3)/2
An acute angle
Its supplementary angle is 121 degrees
59 degree
Find the cosine of 38 degrees and then find its reciprocal.
The number 1.414... (square root of 2) is two times the cosine or sine of a 45 degree angle. The reason for this is that for a 45 degree angle, the two sides are cosine and sine, they are equal, and if you solve using the Pythagorean theorem with a hypotenuse of 1, the two sides are each (21/2)/2.
Fora right angle triangle: cosine angle = adjacent/hypotenuse