Radius Diameter Circumference

What part of the circle is that?

• Circumference

• Radius

• Diameter

• centre

• 11 cm

• 22 cm

• 33 cm

• 44 cm

• 55 cm

• 56 cm

• 65 cm

• 66 cm

• 76.5 cm

• 77.5 cm

• 78.5 cm

• 79.5 cm

Pi is the ratio of a circle's ​ (a)   to its ​ .

• circumference

• diameter

• radius

• center

• height

• weight

• length

• grade point average

• 31.4 cm

• 62.8 cm

• 15.7 cm

• 28.26 cm

The distance from a point on the surface of a circle that passes through the center to the other side of the circle is (a)  

• diameter

• radius

• volume

• cone

• cylinder

• sphere

Pi is the ratio of a circle's ​ (a)   to its ​ (b)   .

• circumference

• diameter

• radius

• center

• height

• weight

• length

• grade point average

• 21.98 cm

• 43.96 cm

• 44 cm

• 88 cm

What is the radius measurement? ​ (a)  

• 6 cm

• 12 cm 

• 24 cm