Pi, radius, and diameter

A circle has a diameter of 105 mm and a circumference of approximately 329.9 mm. Based on this circle, which of the following ratios is equivalent to the value of π ?

Tags

7.5.B

A circle has an approximate circumference of 15.7 ft and a radius of 2.5 ft. Based on this circle, which of the following ratios is equivalent to the value of π ?

Tags

7.5.B

What number is pi?

• 1.41

• 3.14

• 2

• 5.14

Tags

CCSS.HSG.GMD.A.1

Which of the following equations represents the relationship between the circumference, C, and the diameter, d, of any circle?

Tags

CCSS.7.G.B.4

_____________ is half of the diameter

• circumference

• radius

• center

• diameter

______________ is twice the radius

• circumference

• radius

• center

• diameter

Which of these best describes  $\pi?$  

• The square root of the area of a circle.

• The ratio of the radius of a circle to its diameter.

• The radius of a circle times 3.14. 

• The ratio of the circumference of a circle to its diameter.

Tags

CCSS.7.G.B.4

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Tags

CCSS.HSG.C.A.2

What is the diameter?

• 5 in
• 10 in
• 3.14 in
• 15.84 in

Tags

CCSS.7.G.B.4