Name parts of Circle

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

The diameter of a circle is:

• The measurement around the circle.
• The distance from an edge of a circle to another edge.
• The distance from the center of the circle to an edge of a circle
• The distance from an edge of a circle to another edge through the center. 

What is an Arc?

• A straight line connecting two points on a circle.

• A part of the circumference of a circle.

• The area enclosed by a circle.

• A segment of a line that extends infinitely in both directions.

Waht is a Chord?

• A line segment with both endpoints on the circle.

• A line that touches the circle at one point.

• A line segment that passes through the center of the circle.

• A line that connects two points outside the circle.

What is the definition for the Center of a Circle?

• The point that is equidistant from all points on the circle.

• The point where the diameter intersects the circumference.

• The point that defines the radius of the circle.

• The point that is farthest from the circumference.

Circle with a diameter of 78 cm. What is its radius?

• 30 cm

• 35 cm

• 39 cm

• 42 cm

Name the part shown in the given circle.

• Radius

• Tangent

• Circumference

• Segment

How many times bigger is the diameter than the radius?

• 1
• 2
• 3
• 4