The circumference of a ball is 14.45 cm. The circumference of a cup is 25 cm. What is the difference ?

Question

in the diameters of the golf ball and the cup?

Answer 1

25-14,45

=10,55

Answer 2

circumference = 2πr

using π=3.14

r = C/(2π)

r of ball = 14.45/(2π) = 2.3 cm

diameter = 2r = 4.6 cm

r of cup = 25/(2π) = 3.98 cm

diameter = 2r = 7.96 cm

Difference in diameter = 7.96 cm - 4.60 cm = 3.36 cm

Answer 3

C=dpi

Ball:

14.45 = dpi

so d = 14.45/pi

Cup:

25 = dpi

so d =25/pi

Difference:

25/pi -14.45/pi

=  (25-14.45)/pi

= 3.358 cm

Answer 4

circumference is just diameter times pi.

Ball: d(pi) = 14.45

d = 14.45/pi

Cup: d(pi) = 25

d = 25/pi

Difference = 25/pi - 14.45/pi = 10.55/pi

10.55/pi, or approximately 3.358 cm.

Answer 5

Circumference = Pi times the diameter; C = πd

If you're given C, and want d, then divide both sides by π and you get d=C/π.

The ball with circumference of 14.42cm has a diameter of 14.42/π or 4.60cm.

The cup with circumference of 25cm has a diameter of 25/π or 7.96cm.

.