Circles

What is the formula for circumference of a circle given the diameter?

• C = π r
• C = 2 π r
• C = π d
• C = 2 π d

Tags

CCSS.7.G.B.4

The _____ is the distance from the center to any point on the circle.

• diameter
• radius
• π
• center

The distance across a circle through its center is called the _____.

• diameter
• radius
• π
• center

Which segment is the diameter?

• AC
• BD
• LM
• CE

Which segment is a radius?

• LM
• DC
• BD
• ML

The definition of a circle is

• set of all points in a plain that are the same distance from a point called the center

• the distance around a share

• a large figure

• a pizza, orange, plum, or watermelon

Find the radius of the circle

• 20 ft

• 10 ft

• 5.5 ft

• 10

Tags

CCSS.7.G.B.4

find the diameter of the circle

• 14 m

• 7 m

• 14

• 3.5 m

Tags

CCSS.7.G.B.4

What is the circumference?

• 50.24

• 25.12

• 24.5

• 18.3

Tags

CCSS.7.G.B.4

The distance all the way around the circle is called the...

• radius

• diameter

• circumference

• area