Circles Vocabulary

What is a 2-dimensional shape made by drawing a curve that is always the same distance from a center.

• diameter

• radius

• square

• rectangle

• circle

What is the distance from the center to the circumference of a circle called?

• circle

• circumference

• radius

• diameter

• midpoint

What is the name for the distance around the edge of a circle?

• diameter

• radius

• circle

• circumference

• perimeter

What is the term used for the distance from one point on a circle through the center to another point on the circle.

• radius

• diameter

• circumference

• midpoint

• Secant
• Diameter
• Radius
• Chord

the distance around a circle

• perimeter

• circumference

• radius

• diameter

A line segment that passes through the center of a circle and has endpoint on the circles edge

• diameter

• area

• rate

• event

A line segment with one endpoint at the center of a circle and the other on the circle

• radius

• diameter

• chord

• circumference

a line segment with endpoints on a circle

• chord

• radius

• circumference

• reciprocal

Look at the image above. What are the 3 ways you can write the ratio of circle to squares the picture as a RATIO?

• 
• 
• 3 blue squares to 2 green circles

•