Calculate the circumference of a unit circle

Home Calculate the circumference of a unit circle Answer 1 Ava Martin The unit circle has a radius of 1 unit. The formula for the circumference of a circle is given by $C = 2 pi r$ Substitute ( r = 1 ): $C = 2 pi times 1 = 2 pi$ The circumference of the unit circle is...

How to Remember the Unit Circle Fast

Home $ ext{How to Remember the Unit Circle Fast}$ Answer 1 Isabella Walker $text{To remember the unit circle, focus on key angles and their coordinates. Start with } 0^circ, 30^circ, 45^circ, 60^circ, text{ and } 90^circ.$ $text{For example, at } 0^circ, text{ the...

What does sin represent on the unit circle?

Home $ ext{What does sin represent on the unit circle?}$ Answer 1 Charlotte Davis On the unit circle, the sine of an angle represents the y-coordinate of the point on the unit circle that corresponds to that angle.$text{Given an angle } theta, text{the coordinates of...