In trigonometry a circle is 360 degrees, where each degree represents an angle. Angles can be converted to radians as a measurement unit which is used in trigonometry by the formula one pi radian equals 180 degrees.

Similarly, you may ask, what is pi 2 in degrees?

Degrees and RadiansAB60 degreespi/3 radians90 degreespi/2 radians120 degrees2pi/3 radians135 degrees3pi/4 radians

## What is the tangent of 0?

So let’s take a closer look at the sine and cosines graphs, keeping in mind that tan(θ) = sin(θ)/cos(θ). The tangent will be zero wherever its numerator (the sine) is zero. This happens at 0, π, 2π, 3π, etc, and at –π, –2π, –3π, etc.

## Is there an end to the number pi?

Because while these other national holidays come to an end, Pi Day actually doesn’t come to an end, because though Pi technically isn’t infinite, it does, in a sense, never fully end. Pi, formally known as π in the world of mathematics, is the ratio of the circumference of a circle and the diameter of a circle.