Chapter 10

Question 1

circle

Answer 1

A set of all points that are equal distance from the center point

Question 2

radius

Answer 2

The distance from the center to a point on the circle

Question 3

all radii within a circle must be

Answer 3

congruent

Question 4

Two different circles I have the same length radii are

Answer 4

Congruent

Question 5

Two different circles with different length radii are

Answer 5

similar

Question 6

diameter

Answer 6

hey, segment through the center which also connect to point on the circle

Question 7

radius equals

Answer 7

1/2 diameter

Question 8

diameter equals

Answer 8

Two times radius

Question 9

chord

Answer 9

any segment, which connects two points of a circle

Question 10

concentric circles

Answer 10

Coplanar circles that have a common center

Question 11

tangent

Answer 11

A line in the same plane as a circle that intersects a circle at exactly 1 point

Question 12

point of tangency

Answer 12

The point at which the tangent intersects with the circle

Question 13

common tangent

Answer 13

A line that is tangent of two coplanar circles at the same time

Question 14

if a line is tangent to a circle…

Answer 14

then it is perpendicular to the radius, drawn, from the point of tangency

Question 15

tangent and radius are

Answer 15

perpendicular

Question 16

if two segments from the same exterior point, or tangent to a circle

Answer 16

then the two segments are congruent AKA ice cream cone theorem

Question 17

central angle

Answer 17

An angle, whose vertex is the center of a circle

Question 18

arc

Answer 18

Part of a circle

Question 19

intercepted arc

Answer 19

The part of the circle that is inside of the angle

Question 20

circles are measured in

Answer 20

degrees

Question 21

arcs are measured in

Answer 21

degrees

Question 22

semi circle

Answer 22

If the endpoints of an arc, or the endpoints of a diameter than the arc is a semi circle

Question 23

minor arc

Answer 23

Less than half of a circle (greater than 0, less than 180)

Question 24

major arc

Answer 24

more than half of a circle (greater than 180 and less than 360)

Question 25

minor arcs are name by how many letters

Answer 25

2

Question 26

Major arcs your name by how many letters

Answer 26

3

Question 27

The measure of a central angle is the ______ as the measure of its intercepted arc

Answer 27

same

Question 28

How to find the measure of a major are given a minor arc

Answer 28

360-minor arc

Question 29

two arcs are _______ if they share a common endpoint

Answer 29

Adjacent

Question 30

lil arc + little arc

Answer 30

= big arc

Question 31

arcs are congruent if they have…

Answer 31

The same measure in the same circle or in different circles

Question 32

If two chords are congruent

Answer 32

Then their corresponding arcs are congruent

Question 33

If the diameter of a circle is perpendicular to a cord

Answer 33

then the diameter by six the cord and it’s arc

Question 34

If 2 quarts are equal distance from the center

Answer 34

Then the two cords are congruent

Question 35

inscribed angle

Answer 35

An angle whose vertex is on the circle, and who sides contain chords of the circle

Question 36

The measure of an inscribed angle is

Answer 36

Half of it intercepted arc

Question 37

If two or more inscribed angles of a circle intercept the same arc

Answer 37

Then the inscribed angles are congruent

Question 38

if all the vertices of a polygon lie on a circle then we say that the polygon is _______ in the circle

Answer 38

Inscribed

Question 39

If an inscribed angle of a triangle intercepts the semi circle, and therefore the diameter

Answer 39

Then the inscribed angle is a right angle

Question 40

if a quadrilateral is inscribed in a circle

Answer 40

Then it’s opposite angles are supplementary

Question 41

Dead giveaway for (diameter is perpendicular to the cord bisects the cord and arc)

Answer 41

one 90 angle

Question 42

Dead giveaway for (two cords, congruent if they are equidistant from the center)

Answer 42

two 90 angles