Chapter 12 Test Review

Question 1

10.4- Inscribed Angles and Polygons

Answer 1

The measure of an inscribed angle is one half the measure of its intercepted arc

Question 2

10.4- Inscribed Angles and Polygons

Answer 2

If a quadrilateral is inscribed in a circle, then the opposite angles are supplements.

Question 3

Lesson 10.5- angle relationships in circles

Answer 3

If a tangent and a chord intersect at a point on a circle then the measure of each angle formed is one half the measure of its intercepted arc

Question 4

Lesson 10.5- angle relationships in circles

Answer 4

If two chords intersect inside a circle, then the measure of each angle is one half the sum of the measures of the arcs intercepted by the angle and it’s vertical angle

Question 5

Lesson 10.5- angle relationships in circles

Answer 5

If a tangent and a secant, or two tangents and a secant intersect outside a circle, then the measure of the angle formed is 1/2 the difference of the measures of the intercepted arcs.

Question 6

11.4-11.5- Circumference and Area of Sectors and Circles

Answer 6

Arc Length/ Circumference = Measure of Arc/ 360

Question 7

Radius

Answer 7

A segment whose endpoints are the center and any point on a circle

Question 8

Chord

Answer 8

A segment whose endpoints are on a circle

Question 9

Diameter

Answer 9

A chord that contains the center

Question 10

Secant

Answer 10

A line, segment or Ray that intersects a circle

Question 11

Tangent

Answer 11

A line that intersects circle at exactly one point

Question 12

Point of tangency

Answer 12

Where the tangent intersects the circle