Angles, standard form, and radians

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330

11π/6

120

2pi/3

135

3pi/4

270

3π/2

240

4π/3

300

5π/3

225

5π/4

150

5π/6

315

7π/4

210

7π/6

Area formula

A=0.5r^2 • theta

coterminal angles

Angles that have the same terminal side

Circumference Formula

C=2πr

180

π

0

0

Arc formula

S= r • theta, theta is measured in radians

Vertex

The common endpoint of an angle

An angle in standard position has

Vertex is at (0,0) and initial side is on x-axis

Radian

a unit of angle measure based on arc length

90

pi/2

60

pi/3

45

pi/4

30

pi/6

Initial side

the fixed ray of an angle

Terminal side

the position of the ray after rotation


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