Cicumfernce (c) of a circle is directly propotional to its radius (r).
Answers
Answered by
1
Answer:
That is, the circumference of a circle is proportional to its radius, R; double R and you double C. The factor '2 pi' is simply the constant of proportionality between C and R. So the area of a circle is proportional to R2 and pi is the constant of proportionality between the area and the radius of a circle.
Similar questions