Parts of a Circle

Line that goes from middle of circle?

• Radius

• Diameter

• Chord

• Tangent

Answer explanation

The line that goes from the middle of a circle is called the Diameter.

What is the distance from the center of the circle to one part of it?

• Chord

• Circumference

• Diameter

• Radius

Answer explanation

The distance from the center of the circle to one part of it is called the radius.

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

• Tangent

• Secant

• Chord

• Diameter

Answer explanation

A line that touches the circle at exactly one point is called a tangent, making it the correct choice.

What is a line segment with both endpoints on the circle called?

• Diameter

• Radius

• Chord

• Tangent

Answer explanation

A line segment with both endpoints on the circle is called a chord, making it the correct choice.

What is a part of the circumference of a circle called?

• curve

• arc

• line

• angle

Answer explanation

A part of the circumference of a circle is called an arc, making it the correct choice.

What is the region between an arc and a chord of a circle called?

• tangent

• radius

• segment

• angle

Answer explanation

The region between an arc and a chord of a circle is called a segment, making 'segment' the correct choice.

What is the longest chord of a circle called?

• Tangent

• Secant

• Diameter

• Radius

Answer explanation

The longest chord of a circle is called the diameter, which passes through the center of the circle and is twice the length of the radius.

What is the distance across a circle through its center called?

• chord

• radius

• diameter

• perimeter

Answer explanation

The distance across a circle through its center is called the diameter, making it the correct choice.

What is the distance from the center of the circle to any point on the circle called?

• Diameter

• Circumference

• Chord

• Radius

Answer explanation

The distance from the center of the circle to any point on the circle is called the radius.

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

• Parallel

• Perpendicular

• Intersection

• Tangent

Answer explanation

A line that touches the circle at exactly one point is called a tangent. It is the correct choice for this question.