Intro to Circles and Circumference

Determine the radius of the penny

• 59.66 mm

• 9.5 mm

• 8 mm

• 9 mm

The circumference is 62.8 inches.  What is the radius?

• 20 inches

• 10 inches

• 6.28 inches

• 31.4 inches

A line segment between two points on the circle which passes through the center is called a:

• Radius

• Diameter

• Chord

• Tangent

What term best describes the red line LP shown?

• secant

• tangent

• inscribed angle

• chord

What term best describes the segment shown above the center point?

• chord

• diameter

• radius

• tangent

The set of all points in a plane that are equidistant from a given point.

• Circle

• Semicircle

• Half Circle

• Sphere

• parallel

• perpendicular

• congruent

• touching exactly once

The distance from the center of a circle to a point on the circle.

• Radius

• Circumference

• Diameter

• Tangent

PR and PS are tangent to the circle. If m<Q = 140 degrees, what is the m<P ?

• 20°

• 30°

• 40°

• 50°