Parts of a Circle / Circumference

Front

What is line CB called? Options: Circumference, Diameter, Radius, Chord

Back

Diameter

Front

What is line AD called? Options: Area, Circumference, Radius, Diameter

Back

Radius

Front

What is the distance around the outside of the circle called?

Back

Circumference

Front

What is this symbol called?
Options: pi, sigma, radius, omega

Back

pi

Front

What is the approximate numerical value of this sign? Options: 3.11, 3.14, 4.13, 6.28

Back

3.14

Front

What is the actual definition of this sign?

Back

It's the ratio of the circumference to the diameter of a circle.

Front

Back

Front

How many degrees are there in a circle?

Back

360

Front

In words, describe this formula: The circumference of a circle is equal to the pi times the diameter.

Back

The circumference of a circle is equal to the pi times the diameter.

Front

How are these formulas related to each other?

Back

They both solve for circumference. In the first formula it uses diameter, in the second formula it uses two times the radius, which is the same thing as diameter.