Parts of Circle

What is the line segment that connects two points on the circle called?

• Chord

• Radius

• Tangent

• Diameter

If the radius of a circle is 5 cm, what is the diameter?

• 7 cm

• 15 cm

• 10 cm

• 3 cm

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

• Circumference

• Diameter

• Chord

• Radius

If the diameter of a circle is 12 cm, what is the radius?

• 10 cm

• 6 cm

• 8 cm

• 4 cm

What is the longest chord that passes through the center of a circle called?

• Radius

• Circumference

• Diameter

• Tangent

If the radius of a circle is 8 cm, what is the circumference?

• 32π cm

• 40 cm

• 16π cm or approximately 50.27 cm

• 12π cm

What is the ratio of the circumference of a circle to its diameter?

• 3.14

• 2

• 0.5

• π

If the diameter of a circle is 10 cm, what is the radius?

• 8 cm

• 5 cm

• 12 cm

• 3 cm

What is the line segment that passes through the center of a circle and has its endpoints on the circle called?

• Diameter

• Radius

• Tangent

• Chord

If the circumference of a circle is 20π cm, what is the radius?

• 5 cm

• 15 cm

• 25 cm

• 10 cm