properties of tangents

What is the definition of a radius of a circle.

• A line segment from the centre of a circle to the circumference.
• The perimeter of a circle.
• A line segment joining two points on the circumference of a circle, that goes through the centre of the circle.
• A line segment joining two point on the circumference. 

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

What do we call the red line?

• Chord
• Arc
• Diameter
• Segment

Tags

CCSS.HSG.C.A.2

What do we call the blue line?

• Chord
• Circumference
• Radius
• Arc

Tags

CCSS.HSG.C.A.2

What is C?

• diameter
• center
• circumference
• radius

Tags

CCSS.HSG.C.A.2

How many chords are in the figure?

• 1

• 2

• 3

• 0

Tags

CCSS.HSG.C.A.2

Is this a minor arc or major

• Minor
• Major

Definition of a chord

• a line that stretches across the circle in any type of length, but has to be in a straight line.
• the dot that's located in the middle of a circle.

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

Why is angle OAB =90^o ?

• tangents to circle

• sum of angles in quadrilateral

• tangents to circle from external point

• line from external point of tangents bisect angle formed between radius of circle

Tags

CCSS.HSG.C.A.2

A segment whose endpoints lie on a circle is a _______.

• tangent
• chord
• diameter
• secant

Tags

CCSS.HSG.C.A.2

Find the measure of major arc PQ (the question mark).

• 260°
• 100°
• 25°
• 130°

Tags

CCSS.HSG.C.A.2