A circle is a geometric object that has symmetry about the vertical and horizontal lines through its center. When the circle is a unit circle (of radius 1) centered on the origin of the x-y plane, points in the first quadrant can be reflected across the x- or y- axes (or both) to give points in the other quadrants.
That is, if the terminal ray of an angle intersects the unit circle in the first quadrant, the point of intersection reflected across the y-axis will give an angle whose measure is the original angle subtracted from the measure of a half-circle. Since the measure of a half-circle is π radians, the reflection of the angle π/6 radians will be the angle π-π/6 = 5π/6 radians.
Reflecting 1st-quadrant angles across the origin into the third quadrant adds π radians to their measure. Reflecting them across the x-axis into the 4th quadrant gives an angle whose measure is 2π radians minus the measure of the original angle.
Answer:
225y5-192
Step-by-step explanation:
Answer:
I’m not really sure
Step-by-step explanation:
Look at someone else’s answer
Answer:
12/67
Step-by-step explanation:
If you look at the chart, only 12 students that are male got a A. So the probability is 12 out of 67 students or approximately 18%.
One piece of paper is 44 and the other is 33
she can cut each strip where it is 11 inches in width