Circumference and Area

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

• c = 15π

• c = 2π15

• c = π(15²)

• c = π(7.5²)

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 3.5

• 6.5

• 6

• 7

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18

• 36

• 9

• 6

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Tags

CCSS.HSG.C.A.2

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Tags

CCSS.4.G.A.1

What is the radius?

• 18

• 72

• 38

• 14

Tags

CCSS.HSG.GPE.A.1

Find the circumference of the circle in the image.

• 10π

• 20π

• 100π

• 20

Tags

CCSS.7.G.B.4

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

• 
• 

Tags

CCSS.7.G.B.4

What is the area of the circle in the image?

• 10

• 20π

• 100

• 100π

Tags

CCSS.HSG.GMD.A.1

What is the area of the circle in the image?

• 9π

• 12π

• 12

• 36π

Tags

CCSS.HSG.GMD.A.1