Parts of a circle

What is the term for a line that touches a circle at exactly one point?

• Chord

• Radius

• Diameter

• Tangent

What do you call the part of a circle enclosed by two radii and an arc?

• Segment

• Secant

• Sector

• Inscribed angle

Which term describes a straight line that cuts the circle at two points?

• Tangent

• Chord

• Secant

• Radius

What is the name of the angle formed by two radii of a circle?

• Inscribed angle

• Central angle

• Circumscribed angle

• Sector

What is the term for the distance across the circle through its center?

• Radius

• Chord

• Diameter

• Arc

What is a circle defined as in geometry?

• The set of all points that are the same distance away from a specific point, called the edge.

• The set of all points that are the same distance away from a specific point, called the center.

• A shape with four equal sides and four right angles.

• A three-dimensional object with a circular base and a pointed top.

How can you name a circle in geometry?

• Using the point that is furthest away from the center.

• Using the point that is closest to the center.

• Using its diameter.

• Using its center.

If point C is the center of a circle, how can the circle be named?

• Circle A

• Circle B

• Circle C

• Circle D

What is a radius of a circle?

• A line segment with both endpoints on the circle.

• A line segment with one endpoint at the center of the circle and the other endpoint on the circle.

• The distance around the circle.

• A straight line passing through the center of the circle and touching the circle at only one point.

What is the plural form of the word 'radius'?

• Radiuses

• Radii

• Radius

• Radie