Circle review prior to quiz

Circle review prior to quiz

By Dawn Hatch

Multiple Select

Given Circle B, choose all correct statements

• A radius is CB

• A diameter is CD

• A radius is DC

• A diameter is DE

• A chord is DE

​Radius

diameter

Chord​

Multiple Select

Given Circle B, choose the correct statements

• A central angle is Angle CDE

• A central angle is Angle ABC

• An inscribed angle is Angle CDE

• A minor arc is Arc ED

• A major arc is Arc CD

Central angle

Inscribed angle

Minor Arc

Major Arc​

Multiple Select

If CD = 14 units, which other measurements are correct?

• DB = 14

• DB = 7

• Circumference is 43.96 units

• Circumference is 87.92 units

• Arc DC = 180 degrees

CD = 14

​DB?

ARC​ DC?

Circumference?​

Multiple Select

If DB = 9 units, choose the following measurements that are correct

• DC = 18

• AB = 18

• Area of circle B is 254.34 square units

• Area of circle B is 56.52 square units

DB = 9

​DC?

Area?

Multiple Select

Which two measures are correct?

• Arc NP = 90 degrees

• Arc NP = 180 degrees

• x = 220 degrees

• x = 140 degrees

Correct Measures?

Arc NP?

x?

Fill in the Blanks

(Hatch will redraw this on the front board for clarity)

What is the length of a radius of circle B?

{round your answer to the nearest tenth}

CB is a radius & the hypotenuse, so use Pythagorean theorem

​

7² + 9² = c²

​What would the little segment from E to the chord be?​

​

​

Fill in the Blanks

This clock displays the time as 7:00.

What is the measure of the central angle formed by the hands?

degrees

{write the number answer only}

The central angle formed at 7:00 has 5 sections.

​(360/12 = 30)

Each section is 30 degrees​

​

So the angle is 30*5 or 150 degrees​

​

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And now....for an open-note Quiz

Go to Moodle and you may begin!!!