Quiz Circle

What is the line that goes from the center of a circle to any point on the circle?

• Diameter

• Circumference

• Chord

• Radius

What is the measurement around the outside of a circle called?

• Diameter

• Circumference

• Radius

• Center

What is the point that is an equal distance from all the points on a circle? (this is where your finger holds the compass)

• Diameter

• Circumference

• Center

• Chord

What is a straight line that goes through the center of a circle from side to opposite side?

• Diameter

• Circumference

• Radius

• Center

What do we call the red line?

• Chord
• Arc
• Diameter
• Segment

What does the equation of a circle with center at (0,0) look like?

What is the equation of the circle?

• (x+1)^2 + (y +1)^2 = 3

• (x+1)^2 + (y -1)^2 = 3

• (x+1)^2 + (y +1)^2 = 9

• (x-1)^2 + (y -1)^2 = 9

What is the center and radius for a circle with the equation:
(x-4)²+(y+2)²=25

• C:(4, -2), r=5
• C:(-4, 2), r=5
• C:(4, -2), r=25
• C:(-4, 2), r=25

What is the radius of the circle
(x+7)²+(y-2)²=144?

• 7
• 12
• 13

Draw a Diameter on Circle A.