GR 6 - Area and Circumference

What is the diameter?

• 8
• 16
• 10
• 4

What is the circumference?

• 48
• 96
• 24
• 18

What is the diameter?

• 5 in
• 10 in
• 3.14 in
• 15.84 in

What is the formula for the perimeter of a circle? Select all that apply.

• 2 π r

• π d

• π d²

• π r²

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

 Which formula shows the correct way of finding the area of a circle?

•  $A=2\pi r$  

•  $A=\ \pi r^2$  

•  $A=\pi r2$  

•  $A=\pi d$  

What is the area of a circular pool whose radius is 2 meters?

• $1.256m^2$

• $12.56m^2$

• $125.6m^2$

• $1256m^2$

A circle is drawn inside a square with a perimeter of 32 cm. If the circle touches each side of the square, what is the area of the circle?

• $50.24cm^2$

• $200.96\ cm^2$

• $502.4\ cm^2$

• $2009.6\ cm^2$

What is the area of a circular table top if its diameter is 20 centimeters?

• $3.14cm^2$

• $31.40cm^2$

• $314cm^2$

• $3140cm^2$

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72