Circles and Circumference

The definition of radius is

• distance from one point to another point

• distance around the circle

• distance from the center to any point on the circle

• distance across the circle through the center

The definition of diameter is

• distance from the center of any point on the circle

• distance across the circle through the center

• distance from one point to another

• distance around the circle

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

What is the formula for finding circumference

• c = π d

• C = 2 r

Which segment above represents the diameter

• BC

• AC

• BD

• LM

Which segment above represents the radius

• AC

• BD

• 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 circumference of the circle using 3.14

• 4.71  m

• 28.26 m

• 7.065 m 

Find the circumference of the circle using 3.14

• 6.28ft

• 12.56ft

• 25.12 ft