Equation of a Circle, Arc Sector and Arc Length

Match the answers to the following problems.

• Problem 2

• Problem 4

• Problem 1

• Problem 3

Arc Length is found by finding a fraction of the ​ (a)   , while finding the area of a sector is found by finding a fraction of the ​ (b)   .

• cicumference

• area

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)

• (-3, -2)

• (-2, -3)

• (2, 3)

What is x?

• 15

• 23

• 2

• 92

Solve for x.

• 37.5

• 11

• 118

• 15

In a​ circle, a 90° sector has area 64π in². What is the radius of the​ circle?

• 16 in

• 32 in

• 64 in

• 128 in

Find the area of the shaded sector of the circle.

• 
• 
• 
• 

• 56.56

• 65.98

• 395.89

• 9.43

A ______ is the region enclosed by two radii and an arc.

• Segment

• Sector

• Chord

• Circumference

What is the circumference of this circle?

(Use 3.14 for π)

• 452.39 cm

• 75.36 cm

• 452.16 cm

• 75.40 cm