7th grade geometry area, circumference, perimeter

What is the formula for the circumference of a circle?

• $C\ =\ \frac{1}{2}BH$

• $C\ =\ \pi r^2$

• $C\ =\ 2\pi r$

• $C\ =\ BH$

Tags

CCSS.7.G.B.4

What is the circumference of a circle when the radius is 6cm?

• $6\pi\ cm$

• $12\pi\ cm$

• $6\ cm$

• $36\pi\ cm$

Tags

CCSS.7.G.B.4

What is the radius of a circle when it has a circumference of  $14\pi\ inches$  

• 14 inches
  

• 3.5 inches
  

• 3 inches
  

• 7 inches
  

Tags

CCSS.7.G.B.4

Find the perimeter of the figure...

• 15 feet

• 26 feet

• 20 feet

• 25 feet

Tags

CCSS.3.MD.D.8

What is the perimeter of this figure?

• 20 cm

• 34 cm

• 30 cm

• 19 cm

Tags

CCSS.3.MD.D.8

What is the perimeter of the figure?

• 34 m

• 37 m

• 35 m

• 36 m

Tags

CCSS.3.MD.D.8

What is the diameter?

• 5 in
• 10 in
• 3.14 in
• 15.84 in

Tags

CCSS.7.G.B.4

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

• Diameter
• Radius

Find the circumference of the circle.

• 113.04 in

• 1017.36 in

• 254.34 in

• 56.52 in

Tags

CCSS.7.G.B.4

Find the perimeter of the figure.  Use 3.14 for pi.

• 20.56 in.
• 17.3 in.
• 17.8 in.
• 31.88 in.

Tags

CCSS.3.MD.D.8