Special Angles - 45 degrees - 30/60 degrees - 0/90 degrees - Trigonometry

In this article we are going to learn: 
- 45 degrees: Calculate the sine, cosine, and tangent of 45 degrees
- 30/60 degrees: Calculate the sine, cosine, and tangent of 30 and 60 degrees
- 0/90 degrees: Calculate the sine, cosine, and tangent of 0 and 90 degrees

An isosceles triangle is a triangle with two sides of equal length
In a right triangle, the side opposite of the right angle is called the hypotenuse, and the other two sides are called its legs(or called opposites, adjacent).
Sine = opposites side / hypotenuses
Cosine = adjacent side / hypotenuse
Tan = opposites / adjacent
Sec() = 1/cos() or hypotenuse/adjacent
Csc() = 1/sin() or hypotenuse/opposite
Cot() = 1/tan() or cos()/sin() or adjacent/opposite

Special Angles - 45 degrees - 30/60 degrees - 0/90 degrees: