Circumference and Area Review

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Tags

CCSS.7.G.B.4

Which of the following best describes the measurement of Area?

• The amount of space a carpet takes up on the floor

• The amount of soup in a bowl

• The tile border around a circular pool

• The distance around a race track

Tags

CCSS.HSG.GMD.A.1

CCSS.HSG.GPE.B.7

Which of the following best describes the measurement of Circumference?

• The distance around a rectangular soccer field

• The amount of marbles in a jar

• The distance around a Ferris wheel

• The amount of mulch needed to cover a square shaped flower bed

Tags

CCSS.HSG.GMD.A.1

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

• Diameter
• Radius

Tags

CCSS.HSG.CO.A.1

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

• Diameter
• Radius

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

What formula for circumference is best to use when given the diameter?

•  $A=\pi r^2$  

•  $C=2\pi r$  

•  $c=\pi d$  

Tags

CCSS.7.G.B.4

What formula for circumference is best to use when given the radius?

• $C=\pi d$

• $C=2\pi r$

• $A=\pi r^2$

Tags

CCSS.7.G.B.4

What is the circumference of this circle?

• 3.14 cm 
• 37.7 cm
• 24 cm
• 68.4 cm

Tags

CCSS.7.G.B.4

The radius of the circle is 9 meters.  What is the circle's circumference?

• 9 meters
• 28.26 meters
• 56.52 meters
• 18 meters

Tags

CCSS.7.G.B.4

What is the formula for area of a circle?

• $A=lw$

• $C=2\pi r$

• $C=\pi d$

• $A=\pi r^2$

Tags

CCSS.7.G.B.4