Circles

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

A _____ is half of a circle.

• circumference
• pi
• semicircle
•  composite figure

Which segment is the diameter?

• AC
• BD
• LM
• CE

Which segment is a radius?

• LM
• DC
• BD
• ML

what is the formula for finding area of a circle

• C = π r²

• A = π r²

• A = π r² / 2

• C = 2 π r

what is the radius of the inner circle?

• 12 in

• 8 in

• 8 ft

• 4 in

Find the length of the arc to 2dp

• 2.09m

• 301.59m

• 1.05m

• 2.51m

Find the length of the arc to 2dp

• 25.12cm

• 12.57cm

• 628.32cm

• 31.42cm

Find the length of the arc to 2dp

• 49.74cm

• 24.87cm

• 4.97cm

• 24.9cm