Math and Arithmetic

# What is the unit circle?

The unit circle is a circle that can be used to find trigonometric functions. The equation of the unit circle is x^2 + y^2 = 1. So it is any circle with radius 1.

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## Related Questions

If the radius is two. it won't be a unit circle, a unit circle is defined as a circle with radius one.

The unit circle is a circle with its center at the origin and a radius of ' 1 '.

A unit circle is a circle with radius equal to one.

It is unknown who created the unit circle. Pythagoras did a lot of work related to the unit circle. In ancient times, Greek, Indian, and Arabian mathematicians used the unit circle.

A unit circle is not normally called 2 pi. Because the radius length measure of the unit circle is 1 unit, then the circumference of a unit circle is 2*pi, and its area is pi.

A circle can have a unit of length which could be either a measure of its diameter or radius, or of its circumference. Or the circle could have the unit of area.

There really isn't much to memorize. The unit circle is a circle with a radius of 1.

A unit circle is one that has a radius of one. One = Unit, and hence the name.

WHAT ARE THE TANGENTS OF ALL COORDINATES IN THE UNIT CIRCLE?

Since the radius of the unit circle is 1, the circumference is 2 x pi.

A 'unit cube'. Just like a circle with radius 1 and center at (0,0) is a 'unit circle'.

unit in earth science used for measuring angles in a circle or sphere?

Here is a time-line that shows the history of the unit circle dating back to 250 B.C.

A unit circle is a circle of radius 1. If it's center is at the origin of an xy-coordinate system, then the equation is x (squared) + y (squared) = 1

If x2 + y2 = 1, then the point (x,y) is a point on the unit circle.

To calculate the area of a unit circle you should use the equation x2+y2=1. The unit circle equal area of 1. You can find out more information on the mathisfun website for deeper explanation.

Pi over 12 on a radian unit circle is a little more than a quarter of the circle. Radian units are an alternative to degrees.

Pi is related to the area and the circumference of the circle. The area is Pi multiplied by the radius of the circle squared and the circumference is Pi times the diameter of the circle. if you're wondering how it works, pi is the area of a circle with radius of 1 (unit), and the circumference of a circle with a radius of &frac12; (unit).

A unit circle is in the coordinate plane where both axes are measured in real numbers. The imaginary circle is in the complex plane in which one axis (horizontal) measures the real component of a complex number and the other axis measures the imaginary component.

The area of a 6 unit circle is: 28.27 square units.

The basic idea is that a complete turn around the unit circle has a length of 2 x pi (i.e., approximately 6.28). For numbers larger than 2 x pi, you go that distance around the unit circle, moving around it more than once - and eventually end up on some point on the unit circle. For example, if you go a distance of 3 x pi around the unit circle, that is equivalent of a distance of pi (equal to 180 degrees). For negative numbers, you simply move around the unit circle in the opposite direction.

Centimeter is a measurement unit in the metric system. The diameter is not a measurement unit. The diameter of a circle is twice the length of the radius of the circle.

All complex number that can be represented by the coordinates of points on the unit circle, that is, the circle with its centre at the origin and a radius of 1 unit.

A 10.25-unit diameter circle has an area of 82.516 square units.

A 1.4-unit diameter circle has an area of 1.539 square units.

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