Intro to Circles & Circumference

Which equation would you use to find circumference?

• πr²

• πd

• 2r

• ½d

Tags

CCSS.7.G.B.4

What is the diameter of the circle?

• 3

• 6

• 9

• 12

Tags

CCSS.7.G.B.4

What is the radius of the circle?

• 2cm

• 5cm

• 10cm

• 20cm

Tags

CCSS.7.G.B.4

Find the circumference to the nearest foot?

• 231 feet squared

• 132 feet squared

• 321 feet squaed

• 123 feet squared

Tags

CCSS.7.G.B.4

What is the circumference of the circle? Round to the nearest centimeter.

• 16 cm²

• 61 cm²

• 16 ft²

• 61 ft²

Tags

CCSS.7.G.B.4

The radius of a circle is 12 centimeters.

What is the circumference?

• 12π cm

• 24π cm

• 6π m

• 3π m

Tags

CCSS.7.G.B.4

The distance halfway across the circle is called the...

• radius
• diameter
• circumference
• area

The distance across the circle through the center is called the...

• radius
• diameter
• circumference
• area

The distance all the way around the circle is called the...

• radius
• diameter
• circumference
• area

Tags

CCSS.7.G.B.4

If you multiply π × d then you will get the...

• radius
• diameter
• circumference
• area

Tags

CCSS.7.G.B.4