Parts of Circles

Point B is 17 cm from the center of the circle. AB is tangent to the circle at A. Given that AB = 15 cm, find the radius of the circle.

• 8 cm

• 9 cm

• 2 cm

• 16 cm

Tags

CCSS.HSG.C.A.2

CCSS.HSG.SRT.C.8

Find the length of LK

• 24

• 20.25

• 17.5

• 12.32

Tags

CCSS.HSG.C.A.2

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

CCSS.HSG.SRT.D.11

A chord that passes through the center of the circle is a ________.

• chord
• diameter
• radius
• tangent

Tags

CCSS.HSG.C.A.2

Define "tangent line"

• A line which intersects a circle at exactly one point

• A line that intersects a circle at two or more points

• A line that does not intersect a circle

• A line made up of the opposite and adjacent sides of the circle

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

CCSS.HSG.CO.A.1

Define "radius"

• 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.C.A.2

CCSS.HSG.CO.A.1

What is the mathematical name given for the line OA?

• Diameter

• Radius

• Tangent

• Chord

Tags

CCSS.HSG.C.A.2

What is the mathematical name given for the line AB?

• Radius

• Diamter

• Tangent

• Chord

Tags

CCSS.HSG.C.A.2

What is the mathematical name given for the line AB?

• Diameter

• Radius

• Tangent

• Chord

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

What is the measure of a semicircle?

• 60

• 180

• 70

• 90

Tags

CCSS.HSG.C.B.5

CCSS.HSG.GMD.A.1

What is the diameter?

• 8
• 16
• 10
• 4

Tags

CCSS.7.G.B.4