Geometry Unit 9 Review

What is the circumference of this circle?  Round to the nearest tenth.

• 3.14 cm 
• 37.7 cm
• 24 cm
• 68.4 cm

The diameter of a circle is 3 centimeters. What is the circumference?

• 11.5cm2
• 9.42 cm2
• unicorns are awsome
• 45.3 cm2

Assume that all the lines that appear tangent are tangent. Find the perimeter

• 54
• 36
• 48
• 42

What is the measure of angle 1?

• 130
• 65
• 44
• 86

What is the measure of angle 2?

• 80
• 45
• 125
• 40

Solve for x. Assume that lines which appear tangent are tangent.

• 11

• 17

• 18

• 12

Solve for d.

• 8

• 9

• 10

• 12

Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer as an exact value

• 5π/3

• 10π/3

• 10π

• 40π

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

• 19.28

• 163.93

• 655.39

• None of these

 The equation of a circle is: $\left(x-3\right)^2+\left(y-2\right)^2=16$ 

• The radius is 32 units.

• The radius is 16 units.

• The radius is 8 units.

• The radius is 4 units.