Circles Definitions and Properties of Tangents

Which of the following is a good definition for a circle?

• All points equidistant from a single point

• A round polygon

• A continuous curve

• Two semi-circles put together

Tags

CCSS.HSG.CO.A.1

Which shows a tangent line?

• 
• 
• 
• 

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

Tags

CCSS.HSG.CO.A.1

A line segment that passes through the center of a circle, connecting two points on a circle is called ________________.

• diameter
• radius
• circumference
• area

Tags

CCSS.HSG.C.A.2

A tangent line intersecting with a radius always creates a ____________ angle

• right
• acute
• obtuse
• straight

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4

A bicycle tire has a diameter of 27 inches. What is the radius?

• 27π
• 13.5
• 81
• 25π

Tags

CCSS.7.G.B.4

QS is a tangent to circle P.  Find QS.

• 144
• 14
• 12
• 13

Tags

CCSS.HSG.C.A.2

Name the secant(s).

• segment WR
• line VT
• s
• segment WR and line VT

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

Find x. Assume that segments that appear to be tangent are tangent.

• 11.2

• 18.0

• 25.0

• 30.0

Tags

CCSS.HSG.C.A.2