A right angle is 90 degrees.
pi/4 radians = 45 degrees. 2pi radians = 360 degrees pi radians = 180 degrees pi/2 radians = 90 degrees pi/4 radians = 45 degrees pi/3 radians = 60 degrees. et seq.,
The Unit Circle is a circle that has a radius of 1 and a center at the origin. If you look at the unit circle 90 degrees is at the point (0,1). Cosine is equal to the x value of a point on the Unit Circle. The line created to the point (0,1) on the unit circle when the degree is 90 is completely vertical, which in turn makes the x value 0 and thus, cosine of 90 = 0. Read more >> Options >> http://www.answers.com?initiator=FFANS
tan0.15
150 degrees
sin(90) = 1
cos(35)sin(55)+sin(35)cos(55) If we rewrite this switching the first and second terms we get: sin(35)cos(55)+cos(35)sin(55) which is a more common form of the sin sum and difference formulas. Thus this is equal to sin(90) and sin(90)=1
a central angle does NOT have to equal 90 degrees
cos(125) = cos(180 - 55) = cos(180)*cos(55) + sin(180)*sin(55) = -cos(55) since cos(180) = -1, and sin(180) = 0 So A = 55 degrees.
90 degrees Fahrenheit is equal to 32.3 degrees Celsius.
90 degrees Fahrenheit is equal to 32.22 degrees Celsius.
90 degrees Celsius is equal to 194 degrees Fahrenheit.
Two angles that are equal to 90 degrees are Complimentary.
Angles combining to equal 90 degrees are known as complementary angles.
90 degrees Celsius is equal to 194 degrees Fahrenheit.
No because they equal 180 degrees
If all 4 sides are equal and the angles are not 90 degrees it is a rhombus.