Middle School Circles Definitions

What is the radius?

• 18

• 72

• 38

• 14

A line that passes through a circle

• Secant

• Tangent

• Chord

• Radius

A line segment on the interior of a circle with endpoints on the circle

• Radius

• Diameter

• Secant

• Chord

The distance across a circle through the center is called the_______________.

• radius

• circumference

• diameter

• area

Area of a Circle

Circumference of a Circle

Area of a Trapezoid

Area of a Triangle

• Area of a Circle

• Circumference of a Circle

• Area of a Trapezoid

• Area of a Triangle

A line segment connecting any two points on a circle is called a _____________. 

• diameter

• chord

• radius

• circumference 

Name a tangent.

• Segment XC

• Segment LM

• Segment HJ

• LINE BD

The radius is....

• a line that crosses through the center and touches each edge 

• the center point of a circle 

• a line from the center point to the edge of the circle

• an element in science

What is twice as long as a radius

• Center

• Diameter

• Tanget

• Arc

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2

• Divide the diameter by 2

• Add 2 to the diameter

• Subtract 2 from the diameter