Circle unit

What is the mathematical name given for the line OA?

• Diameter

• Radius

• Tangent

• Chord

What is the mathematical name given for the line ACB?

• Diameter

• Radius

• Tangent

• Chord

What is the mathematical name given for the line AB?

• Radius

• Diamter

• Tangent

• Chord

What is the mathematical name given for the line AB?

• Diameter

• Radius

• Tangent

• Chord

This formula is used to find what?

• Circumference

• Area

If the radius of a circle is 6 what is the area?

• 6π

• 36π

• 12π

• 24π

Which of the following is a good definition for a circle?

• All points equidistant from a single point

• A round polygon

• A continuous curve

• Two semi-circles put together

which segment represents the radius

• AC

• AB

• LM

• BD

What is the value of x?

• 5

• 7

• 19

• 35

What best describes segment AB?

• chord
• secant
• tangent
• diameter