Circles and Arc

What is the measure of arc WYZ?

Find the arc length. Leave your answer in terms of π.

• 1.75π

• 3.5π

• 0.125π

• 45π

Find the circumference of the circle with a diameter of 8 feet.

• 2.5 

• 3.93

• 7.5

• 7.85

A segment that connects the center of a circle with a point on the circle.

• tangent

• secant

• diameter

• radius

A line segment between two points on the circle which passes through the center

• Radius

• Diamater

• Chord

• Tangent

How do I find the circumference of a circle?

• C=r^2

If the radius of a circle is 12.5 meters, the diameter is ____

• 6.25 meters

• 125 meters

• 25 meters

• 50 meters

A ____ angle is an angle whose vertex is a the center of a circle.

• supplementary

• complimentary

• central

• obtuse