Display Title
Definition--Circle Concepts--Unit Circle
Display Title
Unit Circle
Topic
Circles
Definition
The unit circle is a circle with a radius of one, centered at the origin of the coordinate plane.
Description
The unit circle is a fundamental concept in trigonometry, representing a circle with a radius of one centered at the origin. It is used to define the trigonometric functions sine, cosine, and tangent, which are essential for analyzing periodic phenomena such as sound waves and tides. The unit circle provides a framework for understanding angles and their relationships with coordinates, making it a crucial tool in mathematics. In education, mastering the unit circle helps students develop a deeper comprehension of trigonometric concepts and their applications in various fields, including physics and engineering.
For a complete collection of terms related to Circles click on this link: Circles Collection.
| Common Core Standards | CCSS.MATH.CONTENT.HSG.C.A.2, CCSS.MATH.CONTENT.HSG.C.A.1, CCSS.MATH.CONTENT.HSG.C.A.3, CCSS.MATH.CONTENT.HSG.C.A.4, CCSS.MATH.CONTENT.4.MD.C.5.A, CCSS.MATH.CONTENT.7.G.B.4 |
|---|---|
| Grade Range | 4 - 8 |
| Curriculum Nodes |
Geometry • Circles • Definition of a Circle |
| Copyright Year | 2021 |
| Keywords | defnitions, geometry, circle |
