Unit 11 Vocab

Question 1

all points are equidistant from a given point

Answer 1

circle

Question 2

how is a circle named

Answer 2

from the center point

Question 3

all circles are_____ because they have the same _____ but not the same ____

Answer 3

similar, shape, size

Question 4

a line segment from the center to any point on the circumference

Answer 4

radius

Question 5

a line segment whose endpoints are on the circumference

Answer 5

chord

Question 6

a chord passes through the center point of the circle

Answer 6

diameter

Question 7

a line that intersects the circle at 2 points

Answer 7

secant

Question 8

a line that intersects the circle in exactly one point

Answer 8

tangent

Question 9

any part of the circle

Answer 9

arc

Question 10

an arc whose measure is less than 180 degrees

Answer 10

minor arc

Question 11

an arc whose measure is between 180 and 360 degrees named by three points

Answer 11

major arc

Question 12

an angle whose vertex is the center point of the circle

Answer 12

central angle

Question 13

an angle whose vertex is on the circle and whose sides are chords

Answer 13

inscribed angle

Question 14

an angle whose vertex is in the circle and formed by two chords intersecting

Answer 14

interior angle

Question 15

an angle whose vertex is outside the circle and formed by either two tangents, two secants, or one tangent and one secant

Answer 15

exterior angle

Question 16

central angle =

Answer 16

arc

Question 17

inscribed angles =

Answer 17

1/2 arc

Question 18

interior angle =

Answer 18

arc + arc/2

Question 19

exterior angle =

Answer 19

arc - arc divided by 2