Trig Chapter 6 Degrees and Radians

Which quadrant is represented by the area between 0 and pi over 2?

1

To convert radians to degrees, multiply by_________

180 over pi

Which quadrant is represented by the area in between pi over 2 and pi?

2

one revolution around a circle is equal to...

2 pi radians

How many radians are in a circle?

2π radians

A 360 degree revolution (or 1 revolution) around the circle is measured at how many radians?

2𝜋

The circumference of a circle is measured at...

2𝜋r

Which quadrant is represented by the area between pi and 3 pi over 2?

3

How many degrees are in a circle?

360 degrees

How many quadrants are there in a Unit Circle?

4

Which quadrant is represented by the area between 3 pi over 2 and 2 pi?

4

What is a coterminal angle of 50 degrees?

410

Angles between 0 and pi over 2 are called...

acute angles

If two angles have the same initial and terminal sides, they are called...

coterminal

The amount of rotation of a ray determines the _________

measure

Angles between pi over 2 and pi are called...

obtuse angles

What is the sum of two supplementary angles in radians?

pi

To convert degrees to radians multiply by ___________

pi over 180

What is the sum of two complementary angles in radians?

pi over 2

The measure of a central angle when the initial, terminal, and arc are equal

radian