circumference and area of circles

If the diameter of a circle is 4, what is the radius?

• 4

• 2π

• 4π

• 2

Tags

CCSS.7.G.B.4

If r = 4, d = ?

• 4

• 2

• 8

• 8π

Tags

CCSS.7.G.B.4

If d = 3, r = ?

• 6

• 3

• 1.5

• 1

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 diameter of the circle in the image?

• 10

• 20π

• 20

• 100

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.7.G.B.4

What is the radius of the circle in the image?

• 6

• 2

• 3

• 12

Tags

CCSS.7.G.B.4

What is the area of the circle in the image?

• 9π

• 12π

• 12

• 36π

Tags

CCSS.7.G.B.4

What is the circumference of the circle in the image?

• 6

• 6π

• 12π

• 36π

Tags

CCSS.7.G.B.4