Part 1-90deg increments
The unit circle is a circle with a radius of 1 , generated by the most used angles, in trigonometry, of a circle.
One revolution of a circle is 360deg , or 2pi radians. We will begin our task by creating a circle with a point at
every 90deg , or (pi )/(2), increments. Below is a blank circle with a radius of 1 unit. We start at the point (1,0) with 0
and place a point every (1)/(4) of a revolution around the circle. See the annotations below, beginning at (1,0)dots
The point (2)/(4) of a
This point is (1)/(4) of a
revolution about the
revolution about the
circle relates to an
angle of 180deg , or
radians.
(3)/(4) of a revolution
about the circle
relates to an angle
of
, or
circle. The angle is
deg , or (pi )/(2) radians.
radians.
So the circle, with its angles marked, looks like this...
This point is
We now want to mark each angle
With its respective point.
See the annotations...
Finish filling in the points
For the last two (1)/(4) revolutions.
This is the
point (1,0).
Part1-90increments The unit circle is a circle with a radius of 1, generated by the most used angles, in trigonometry, of a circle. One revolution of a circle is 36o,or 2T radians. We will begin our task by creating a circle with a point at every 90, or , increments. Below is a blank circle with a radius of 1 unit. We start at the point (1, 0) with 0 and place a point every - of a revolution around the circle. See the annotations below, beginning at (1, 0)...
This point is P of a revolution about the circle. The angle is , or " radians. 2
The point 7of a revolution about the circle relates to an angle of 180, or radians.
This is the point (1, 0). Here the angle of rotation is only 0, or O radians.
radius =1 uni
+ about the circle relates to an angle of or radians.
One full revolution is, or radians.
So the circle, with its angles marked, looks like this. We now want to mark each angle With its respective point. 90 See the annotations.. Finish filling in the points For the last two =- revolutions. 4
This point is (0, 1).
This is the point (1, 0).
180
adius=1uni 3602
270 3W
