Question 1

In a circle, what is an arc?

Accepted Answer

A portion of the circumference of a circle.

Answer

A line that passes through the center of the circle

Answer

A line segment connecting two points on the circle through the center

Answer

A line segment from the center to a point on the circle

Question 2

If an arc is half of a circle, what is it called?

Accepted Answer

A semicircle

Answer

A sector

Answer

A quadrant

Answer

A segment

Question 3

What do you call the measure of an arc in degrees?

Accepted Answer

The central angle

Answer

The radius

Answer

The segment area

Answer

The chord length

Question 4

How is the length of an arc calculated if the radius of the circle is known?

Accepted Answer

By multiplying the radius by the central angle (in radians)

Answer

By finding the area of the circle and multiplying by the central angle

Answer

By dividing the diameter by the chord length

Answer

By multiplying the diameter with the sector area

Question 5

What term describes an arc that is larger than a semicircle?

Accepted Answer

Major arc

Answer

Chord

Answer

Sector

Answer

Minor arc

Question 6

Which of the following statements is true about a minor arc?

Accepted Answer

A minor arc measures less than 180 degrees.

Answer

A minor arc always forms a right angle with the radius.

Answer

A minor arc is equal to the diameter of the circle.

Answer

A minor arc measures more than 180 degrees.

Question 7

How is the measure of a central angle related to its intercepted arc?

Accepted Answer

The measure of the central angle is equal to the measure of its intercepted arc.

Answer

The measure of the central angle is half of the intercepted arc.

Answer

The measure of the central angle is double the measure of its intercepted arc.

Answer

There is no direct relationship between the central angle and the intercepted arc.

Question 8

What is the term for a line segment with endpoints on a circle that also passes through the center?

Accepted Answer

Diameter

Answer

Chord

Answer

Tangent

Answer

Radius

Question 9

In a circle, what term describes a line that touches the circle at exactly one point?

Accepted Answer

Tangent

Answer

Secant

Answer

Radius

Answer

Chord

Question 10

What is the name for a part of the circle's circumference lying between two points on the circle?

Accepted Answer

Arc

Answer

Diameter

Answer

Tangent

Answer

Chord

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