Identifying Circumference and Diameter of a Circle

Which part is half of the diameter?

• Radius

• Chord

• Circumference

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

• Diameter

• Circumference

• Radius

• Center

What is the Circumference?

• The enclosing boundary of a curved geometric figure, especially a circle.

• The extent or measurement of a surface or piece of land

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

• Radius

• Diameter

The perimeter of a circle is usually called the...

• radius

• diameter

• circumference

• area

Which segment is a diameter?

• BE

• AC

• BC

Is the red line a radius or diameter?

• Radius

• Diameter

The pink line is the circle's ____.

• diameter

• radius

• center

• circumference

Which number best represents a diameter?

• 2

• 5

• 6

• 7

What is the distance around a circle called?

• Circumference

• Area

• Diameter

• Radius