Unit Circle

Front

What is the radius of a unit circle?

Back

1

Front

Which fraction represents the special decimal .707? Options: √2/2, √3/2, 1/2, 1

Back

√2/2

Front

What are the coordinates of 180° on the unit circle?

Back

-1, 0

Front

Where can you find point (-√2 /2, -√2/2) with respect to the unit circle?

Back

on

Front

Choose the best match for the graph: 90^o, 135^o, 150^o, 180^o

Back

180^o

Front

The hypotenuse of any right triangle from the center of the unit circle to an edge is always

Back

1

Front

The distance across the circle through the center is called the...

Back

diameter

Front

The distance from the center of the circle to any point on the circle is called the...

Back

radius

Front

The distance all the way around the circle is called the...

Back

circumference

Front

The space contained inside of a circle is called the...

Back

area