Chapter 10

Question 1

Circle:

Answer 1

A closed shape with all points equidistant from the center

Question 2

Radius:

Answer 2

A segment from the center to the circumference

Question 3

Circumference:

Answer 3

The distance around a circle

Question 4

Secant:

Answer 4

A line that intersects the circle exactly twice

Question 5

Tangent:

Answer 5

A line that intersects the circle exactly once

Question 6

Chord:

Answer 6

A segment with its endpoints on the circles circumference

Question 7

Diameter:

Answer 7

A chord through the center of a circle

Question 8

Point of tangency:

Answer 8

The point that the tangent crosses on the circle.

Question 9

Semicircle:

Answer 9

Half of the circumference

Question 10

Major arc:

Answer 10

More than half of the circumference

Question 11

Minor arc:

Answer 11

Less than half of the circumference

Question 12

Circular arc:

Answer 12

A portion of a circle measured by the central angle, 0

Question 13

Center:

Answer 13

A point in the middle of a circle

Question 14

Central angle:

Answer 14

An angle whose vertex is the center of the circle

Question 15

Line segment:

Answer 15

A line that has a definite beginning and end

Question 16

Concentric circles:

Answer 16

circles that have a common center and have no points of intersection

Question 17

Tangent circles: c

Answer 17

Circles with exactly one point of intersection.

Question 18

Perpendicular bisector:

Answer 18

a line or line segment that intersects at 90 and divides into two equal parts

Question 19

Inscribed polygon:

Answer 19

A polygon whose vertices intercept the circumference of a circle.

Question 20

Pythagorean thrm:

Answer 20

A^2 + b^2 = c^2
* b = bottom of triangle
* c (hypotenuse)

Question 21

Circumscribed circle:

Answer 21

the circle that contains the vertices of an inscribed polygon

Question 22

Segment symbol:

Answer 22

<—->

Question 23

Line symbol:

Question 24

The point in the middle of a circle is the _____ of the circle

Answer 24

Name

Question 25

Standard equation of a circle:

Answer 25

(x - h)^2 + (y-k)^2 = r^2

Question 26

Center (___,____)

Answer 26

H,k

Question 27

r =

Answer 27

Radius

Question 28

Two negatives turn _____.

Answer 28

Positive

Question 29

In the standard equation remember to put the ____ __ of the number into the calculator

Answer 29

Square root

Question 30

Formula for origin:

Answer 30

X^2 + y^2 = r^2

Question 31

If something has a square root next to it then it is ____.

Answer 31

Doubled

Question 32

Find The standard equation and complete the square:

Answer 32

(a/2)^2

Question 33

Find the product: ___ ________ method

Answer 33

Box multiplication

Question 34

Measure of a minor arc = _____ of its _____ angle

Answer 34

Measure Central

Question 35

m AB = the ____ of arc AB

Answer 35

Measure

Question 36

Measure of an entire circle =

Answer 36

360

Question 37

Major arc = ___ - number of known arc

Answer 37

360

Question 38

Measure of semicircle =

Answer 38

180

Question 39

The measure of the arc formed by the adjacent arcs is the ____ of those arcs Formula: m ABC = m____ + m ____

Answer 39

Sum AB BC

Question 40

Circles with the same ____ are ____. All circles are _____. Formula: .A congruent.B if and only ___ congruent sign _____

Answer 40

Radius Congruent Similar (dilations) AC BD

Question 41

Two ___ arcs of congruent circles are congruent if an only if corresponding ___ angles are _____.

Answer 41

Minor Central Congruent

Question 42

Circumference formula:

Answer 42

πd or 2πr

Question 43

Area formula:

Answer 43

π r^2

Question 44

A quadrilateral can be inscribed in a circle if and only if it's _____ angles are _________.

Answer 44

Opposite Supplementary

Question 45

D,e,f and g lie on . C if and only if m

Answer 45

180

Question 46

Opposite angles in a quadrilateral=

Answer 46

180

Question 47

If right ____ in circle, then hypotenuse has to be ______

Answer 47

Triangle Diameter

Question 48

Anything that is positive in a standard equation is ____

Answer 48

-

Question 49

Circle with angle in percentages: ____/_____ 3.6 × ___

Answer 49

360 100 Measure of x (unknown angle)

Question 50

Inscribed angle: angle whose ____ is in a circle and whose sides contain ____ of the circle

Answer 50

Vertex Chords

Question 51

Intercepted arc: arc that lies between 2 ___,___,or ____

Answer 51

Lines Rays Segment's

Question 52

Signature is extra credit on test SO PRACTICE IT!

Question 53

The measure of an ____ angle is ___-___ the measure of its _______ arc

Answer 53

Inscribed One half Intersepted

Question 54

If 2 _____ angles of a circle ____ the same arc, then the angles are ____.

Answer 54

Inscribed Intersept Congruent

Question 55

Inscribed angles are ____ of the measure of the _____ arc

Answer 55

Half Intercepted

Question 56

Average:

Answer 56

Add and divide by the number of numbers that are being added

Question 57

The angle that _____ on the circle is ___ of the intercepted arc Formula: m<1 = __/_ mAB

Answer 57

Intersects Half 1/2

Question 58

The angle that ____ in the circle is ____ of the avg of the corresponding intercepted arcs Formula: m<1= measure of arc 1 + measure of arc 2 /2

Answer 58

Intersects Half

Question 59

The angle that ____ outside the circle is the measure of the ____ arc - ____ arc

Answer 59

Intersects Bigger Smaller

Question 60

Tangent line to circle them: Line is tangent to a circle if and only if that line is ______ to a ____ of the circle at its ____ on the circle

Answer 60

Perpendicular Radius Endpoint

Question 61

External tangent congruence thrm:_____ segment's from a common _____ _____are congruent

Answer 61

Tangent External point

Question 62

2 minor arcs are congruent if and only their _____ ____ are congruent

Answer 62

Corresponding chords

Question 63

If the diameter is _____ to a chord, then the diameter _____ the chord and it's ____. Which makes the two split parts of the chords _____ and the same applies to the ____.

Answer 63

Perpendicular Bisects Arc Congruent Arc

Question 64

Two chords are congruent if and only if they are _____ from the _____.

Answer 64

Equidistant Center

Question 65

If two _____intersect in the _____ of a circle, then the product of the lengths of the segments of 1 choir is equal to the ____ of the lengths of the segments of the other chord

Answer 65

Chords Interior X

Question 66

External segment: segment that's _____.

Answer 66

Outside

Question 67

Seacant segment: all of the points on the _____ segment

Answer 67

External

Question 68

If a _____ segment and a ____ segment share an endpoint outside a circle then the product of the lengths of the seacant segment and it's external segment = the ___ of the length of the _____ segment Formula: (________) (Entire _________) = Tangent

Answer 68

Seacant Tangent Square Tangent Formula: external Seceant

Question 69

Arc length: Arclength / _____ = m of arc/ _____ or m of ___/____ × 2πr

Answer 69

- 2πr 360 - Arc 360

Question 70

π =

Answer 70

3.14