Circles and Arc Length

A segment of the circumference of a circle.

• Arc

• Tangent

• Major Arc

• Tangent

An arc that measures less than 180 degrees

• Minor Arc

• Major Arc

• Arc

• Angle

An arc that measures between 180 and 360 degrees.

• Major Arc

• Minor Arc

• Arc

• Semicircle

An angle whose vertex is the at the center of a circle.

• Central Angle

• Inscribed Angle

• Obtuse Angle

• Acute Angle

An angle whose vertex lies of the circle and both endpoints lie across the circle.

• Inscribed Angle

• Central Angle

• Angle

• Arc

Tags

CCSS.HSG.C.A.2

The distance around the circle (perimeter)

• Circumference

• Area

• Circle

• Length

In circle O, the radius is 4, and the measure of minor arc AB is 120 degrees. Find the length of minor arc AB to the nearest integer.

• 5

• 9

• 8

• 6

Tags

CCSS.HSG.C.B.5

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

Tags

CCSS.7.G.B.4