Circle Features

Name the feature shown by the interval: AC

• sector

• arc

• radius

• diameter

• tangent

Name the feature shown by the interval: CD

• chord

• arc

• radius

• diameter

• tangent

Name the feature shown by the interval: DB

• chord

• arc

• radius

• diameter

• tangent

Which feature is represented by the shaded region?

• minor segmnet

• major segment

• semicircle

• sector

• circumference

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 shape

• set of all points that have different distance from a center

• polygon that has a fixed shape

Point B is 17 cm from the center of the circle. AB is tangent to the circle at A. Given that AB = 15 cm, find the radius of the circle.

• 8 cm

• 9 cm

• 2 cm

• 16 cm

The diameter of a circle is 3 centimeters. What is the circumference?

• 11.5 cm

• 9.42 cm

• 10.11 cm

• 45.3 cm

Find x

• 10

• 5

• 18

• 9

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius