Ch 12 review 7+

The definition of circumference is

• distance from the center of any point on the circle

• distance from one point to another

• distance around the circle

• distance from the center of any point on the circle

which segment above represents the diameter

• BC

• AC

• BD

• LM

which segment above represents the radius

• AC

• AB

• LM

Find the radius of the circle

• 20 ft

• 10 ft

• 5.5 ft

• 10

find the diameter of the circle

• 14 m

• 7 m

• 14

• 3.5 m

find the radius of the circle

• 3 m

• 1.5 m

• 1.5

• 1.5 mm

what is this shape called

• circle

• semi circle

• moon

• triangle

what is the formula for finding area of a circle

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

What is the area of this circle?

• 1385.44
• 2142.12
• 5541.77
• 1289.12