Area and Circumference of Circles

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

Tags

CCSS.7.G.B.4

If my radius is 10ft, what is my diameter?

• 20ft
• 5ft
• 31.4ft
• 62.8ft

Tags

CCSS.7.G.B.4

what is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

Tags

CCSS.7.G.B.4

Find the circumference of a circle with a radius of 12.5 mm .

• 37.68mm
• 18.84mm
• 78.5mm
• none of the above

Tags

CCSS.7.G.B.4

The radius of a circle is

• The measurement from the center of a circle to an edge of the circle.
• The measurement around the circle
• The measurement from and edge of the circle to another edge through the center
• A line perpendicular to the diameter of the circle

Tags

CCSS.HSG.CO.A.1

What is π ? (Best Choice)

• The ratio of the circumference of any circle to its diameter.
• Exactly 3.14
• Exactly 3.1415
• Exactly 3.141593

Tags

CCSS.HSG.GMD.A.1

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56
• 16π or about 50.24
• 2π or about 6.28
• 8π or about 25.12

Tags

CCSS.7.G.B.4

A Circle has a radius of 4.  What is the area of the circle? (Best Choice) (note: units are squared)

• 4π or about 12.56
• 16π or about 50.24
• 2π or about 6.28
• 8π or about 25.12

Tags

CCSS.7.G.B.4

A Circle has a radius of 6 inches.  What is the area of the circle? (Best Choice)

• 3π or about 9.42 in²
• 6π or about 18.84 in²
• 12π or about 37.68 in²
• 36π or about 113.04 in² 

Tags

CCSS.7.G.B.4

A Circle has a diameter of 10 centimeters.  What is the circumference of the circle? (Best Choice)

• 5π or about 15.7 cm
• 10π or about 31.4 cm
• 20π or about 62.8 cm
• 100π or about 314 cm 

Tags

CCSS.7.G.B.4