Precalc Unit 7 Def.

Question 1

Angle

Answer 1

Rotation about a point

Question 2

revolution

Answer 2

360 or 2 pi

Question 3

radian

Answer 3

central angel at which radius = arc length

Question 4

standard position

Answer 4

vertex is at orig. initial ray = pos. x axis

Question 5

quadrantal angles

Answer 5

angls in stard pos. w/ terminal ray on axis

Question 6

coterminal angle

Answer 6

angle in standard pos. w/ common terminal ray

Question 7

unit circle

Answer 7

circle with radius 1 and center at orig.

Question 8

ref. angle

Answer 8

terminal ray of an algne in s.p and closet x=axis, quad have no, q1 are their own