Circles Quiz

What is the formula for CIRCUMFERENCE of a circle?

• C=πd

• C=πd²

• A=πr²

• C=πβγΔ

What is the formula for area of a circle?

• C=πd
• C=πd²
• A=πr²
• A= C/d

Find the area of sector.

What is the area of the shaded sector? Round your answer to the nearest hundredth.

• 19.28

• 163.93

• 655.39

• None of these

• 5688π ft

• 15.8π ft

• 150.4π ft

• 54,150 ft

Is arc LMN a major or minor arc? What is the measure?

• Major Arc;  130 degrees

• Minor Arc; 130 degrees

• Major Arc; 120 degrees

• Minor Arc; 120 degrees

Find the measure of arc NLK.

• 180 degrees

• 185 degrees

• 125 degrees

• 210 degrees

Name a secant of the circle.

Name a tangent of the circle.

What is the value of x?

• 22
• 25
• 15
• 20