Circles Part 1

Which of the following is a chord?

• DS

• AS

• CS

• BD

What is the diameter?

• 2.5 cm

• 15 cm

• 5 cm

• 10 cm

What is segment AC?

• chord

• radius

• diameter

What is a line segment that joins two parts on a circle?

• line

• chord

• radius

• diameter

Name the line show.

• Secant

• Diameter

• Radius

• Chord

What is the circumference of the circle?

• 25.12 in.

• 12.56 in.

• 50.24 in.

What is the formula for area of a circle?

• C=πd

• C=πd²

• A=πr²

• A= C/d

What is the area of the circle?

• 15.7 cm²

• 78.5 cm²

• 31.4 cm²

• 5 cm²

A ____ angle is an angle whose vertex is a the center of a circle.

• supplementary

• complimentary

• central

• obtuse