Ratio of Circumference and Diameter

• 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.

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

What number is pi?

• 1.41

• 3.14

• 2

• 5.14

Which of these ratios is the closest approximation of pi?

Pi is the ratio of a circle's​ (a)   to its ​ (b)   .

• circumference

• diameter

• pi

• irrational number

• radius

• pie

• perimeter

what is the ratio between the circumference divided by the diameter in all circles

• 22.7

• changes based on the answer

• always the same

• 3/14

The ratio of the circumference of a circle to the diameter

• distance

• pi

• radii

• diameter

Which shows the ratio for pi?

• circumference to diameter

• radius to circumference

• area to diameter

• area to radius

Pi is the ratio of a circle’s _________ to _________. 

• radius/diameter

• circumference/diameter

• area/circumference

• circumference/radius

Mathematical Equivalence

ON