Unit 3 Circle Vocabulary Part 1

A ____________ is made out of all the points that are the same distance from a given point.

Match the following

• pi (π)

• A line segment that goes from the center to the edge of a circle

• Radius

• Diameter

• A line segment that goes from one edge of a circle to the other and passes through the center

• π x d

• Formula for the circumference of a circle

• Formula for area of a circle

• There is a proportional relationship between the diameter and circumference of any circle. We use a symbol to represent this relationship

The _______of a circle is the point equal distance from the points on the edge

• radius

• diameter

• center

• edge

The _________ of a circle is the distance around the circle

• circumference

• radius

• area

• diameter

Simply refrain from substituting pi's numerical value for its symbol in the equation

The space occupied by the circle (inside)

• Radius

• Circumference

• Diameter

• Area