Circle Vocabulary & Central Angles

• ​Students will learn the appropriate vocabulary associated with the characteristics of of a circle.

• SWBAT calculate the arc's and central angles of a circle.

Draw

Somewhere in this image of a flock of toucans is a lone penguin. Where is it?

​Complete page 1 of your worksheet based upon
the diagram below.

Match

Match the items.

• RT

• P

• PS or RP

• QT

Chord

Center of Circle

Radius

Diameter

• Chord

• Center of Circle

• Radius

• Diameter

Match

Match the following.

Semicircle

Minor Arc

Major Arc

• Semicircle

• Minor Arc

• Major Arc

Multiple Choice

Name a semicircle.

• AD

• ABC

• BA

Multiple Choice

What is the measure of arc AXB

• 50

• 100

• 180

• 260

Multiple Choice

What is the measure of  $$∠PTQ$$ ?

• 100°

• 140°

• 180°

• 120°

Multiple Choice

What is the measure of arc ED?

• 90 degrees

• 55 degrees

• 270 degrees

• 35 degrees

Multiple Choice

This is a picture of ___________.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

Multiple Choice

What is the value of x?

• $$x=160\degree$$

• $$x=40\degree$$

• $$x=80\degree$$

• $$x=360\degree$$

Multiple Choice

Solve for x. Assume that lines which appear to be diameters are actual diameters.

• 7

• -9

• -7

• -5

Multiple Choice

Solve for x. Assume that lines which appear to be diameters are actual diameters.

• 2

• 3

• 1

• -4

Multiple Choice

Find the measure of the arc or central angle indicated. Assume that lines which appear to be diameters are actual diameters.

• $$102\degree$$

• $$100\degree$$

• $$107\degree$$

• $$137\degree$$

​Please Complete pages 2-3 of your worksheet.