Finding Circumference and Area of the Circle

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

Tags

CCSS.7.G.B.4

MUST DO: What is the approximate area of the circle above?

• 44 inches squared

• 154 inches squared

• 616 inches squared

Tags

CCSS.7.G.B.4

A DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?

• c = 15π

• C = 2π15

• c = 15 ÷ π

• c = 15 π

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

Tags

CCSS.7.G.B.4

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the diameter of Jayne’s lollipop be? Use π = 3.14.

• 4 in.

• 8 in.

• 12 in.

• 16 in.

Tags

CCSS.7.G.B.4

What is circumference?

• The distance around a circle.

• The space inside the circle.

• A line from side to side passing through the center.

• A line from the center to the side.

What is the formula for finding the area of a circle?

• 
• 

Tags

CCSS.7.G.B.4

A circle as a circumference of 36π meters. What is the radius of the circle?

• 36 meters

• 6 meters

• 12 meters

• 18 meters

Tags

CCSS.7.G.B.4

Find the circumference of the circle in the image.

• 10π

• 20π

• 100π

• 20

Tags

CCSS.7.G.B.4

What is the area of the circle in the image?

• 10

• 20π

• 100

• 100π

Tags

CCSS.7.G.B.4