What Is The Circumference Of A Circle With 7cm Radius?

The circumference of the circle can be found by using the equation :
Circumference = 2 X Pi X r
where pi is a constant value equal to 22/7 or 3.14
Circumference = 2 X 3.14 X 7
Circumference = 43.96 cm.

43.96

3 1/2 centimeters.

What is the circumference of a circle with 7cm radius?

Calculà la longitud de cada circunferencia
teniendo en cuenta el dato:

A_ diametro de 16 cm

b_diametro de 12 cm

c_ diametro de 9 cm

d_radio de 4cm

e_ radio de 35 mm

f_ diametro de 90 mm

h _ radio de 7 cm

Como Es eso no entiendo me podrias explicar?
Si me explica muchas gracias

Circumference = 43.96

pi = 3.14159265358979323... (it goes forever)

recommend to use 3.14 instead of pi!