Pi and Circles

The distance around the outside of the circle

• diameter

• radius

• circumference

• area

Half of the diameter is called the

• pi

• radius

• circumference

• area

Tags

CCSS.HSG.C.A.2

The circumference is like adding up all around the circle. What is another word for adding up all around a figure?

• diameter

• perimeter

• McDonaldeter

• thermometer

Ratio of circumference to diameter is a constant and it is denoted as ____.

Tags

CCSS.HSG.GMD.A.1

Find the area of a circle whose radius is 21 cm.

Tags

CCSS.7.G.B.4

The perimeter of a circle is also known as the ______of the circle

• area

• arc

• circumference

Choose the correct formulas for the circumference of the circle.

Tags

CCSS.7.G.B.4

Can you say that the circumference of a circle is always more than three times its diameter?

• Yes

• No

Tags

CCSS.7.G.B.4