Circumference and Area of Circle

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

Tags

CCSS.4.G.A.1

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 82.13

• 78.6

• 314.16

• 170.12

Tags

CCSS.HSG.GMD.A.1

what is the area of a circle with the diameter of 16 cm ?

• 66 cm

• 201.1 cm

• 66.5 cm

• 10 m

Tags

CCSS.HSG.GMD.A.1

If r = 4, d = ?

• 4

• 2

• 8

• 8π

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.7

If d = 3, r = ?

• 6

• 3

• 1.5

• 1

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

Find the circumference of the circle in the image.

• 10π

• 20π

• 100π

• 20

Tags

CCSS.HSG.GMD.A.1

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

• 
• 

Tags

CCSS.HSG.GMD.A.1

What does π equal?

• 3

• 3.14

• 3.2

• 21/7

Fill in the blank. The radius of a circle is equal to _________ its diameter.

• half

• twice

• the square of

Tags

CCSS.7.G.B.4