Introduction to Circles

Question 1

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

Revolt · Accepted Answer

Option D

Question 2

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

Revolt · Accepted Answer

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

Question 3

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

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

Question 4

Which statements are correct? Check all that apply.

Revolt · Accepted Answer

A diameter is always a chord.; A tangent is never a secant.; A chord can be shorter than a radius of the same circle.; A radius is always congruent to another radius of the same circle.

Question 5

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

Revolt · Accepted Answer

minor arc; is a and measures degrees.: minor arc; is a and measures degrees.: major arc; is a and measures degrees.: 298

Question 6

What is m?

Revolt · Accepted Answer

231°

Question 7

Determine the values. The value of x is . The measure of is degrees. The measure of is degrees.

Revolt · Accepted Answer

Part 1: 5; Part 2: 58; Part 3: 55

Question 8

Which would prove that the circles are similar? Dilate the smaller circle by a factor of . If the circles were not concentric, what additional step would be needed to prove they are similar? one of the circles so that the circles have the same center.

Revolt · Accepted Answer

11/5; Selection 1: 11/5; Selection 2: Translate

Question 9

Question 17

Revolt · Accepted Answer

Translate

Question 10

✔ major arcminor arcsemicircle

Revolt · Accepted Answer

major arc

Introduction to Circles Answers

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