Introduction to Circles

Question 1

Which circle C shows a chord that is not a diameter?

Revolt · Accepted Answer

[Image: Circle C is shown. A line goes from one point on t...]

Question 2

Question 2

Revolt · Accepted Answer

tangent

Question 3

Question 3

Revolt · Accepted Answer

secant

Question 4

Question 4

Revolt · Accepted Answer

radius

Question 5

Question 5

Revolt · Accepted Answer

79

Question 6

Identify the parts relating to A. What is ? What is ? What is ? What is AC?

Revolt · Accepted Answer

secant; Selection 1: secant; Selection 2: tangent; Selection 3: secant; Selection 4: radius

Question 7

Circle A has a radius of 6. Which circles are congruent to circle A? Check all that apply.

Revolt · Accepted Answer

circle E; circle F

Question 8

Complete the statements about circle Z. A central angle, such as angle of circle Z, is an angle whose vertex is and whose sides are radii of the circle. Angle is not a central angle of circle Z. The degree measure of an arc is the degree measure of the central angle that intercepts it. The measure of is degrees.

Revolt · Accepted Answer

UZV; Selection 1: UZV; Selection 2: the center of the circle; Selection 3: WSX; Selection 4: equal to; Selection 5: 79

Question 9

Complete the statements about circle J. is a and measures degrees. is a and measures degrees.

Revolt · Accepted Answer

minor arc; Selection 1: minor arc; Selection 2: 152; Selection 3: major arc; Selection 4: 298

Question 10

How is a tangent different from a chord? Explain.

Revolt · Accepted Answer

A tangent intersects a circle at only one point, while a chord intersects the circle at two points. Also, a chord is contained within a circle, but a tangent is outside the circle, except for the point of tangency, which lies on the circle.

Introduction to Circles Answers

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