Question

circumference (c) of a circle is directly proportional to its radius ( r) using the symbol of ​

Answer 1

Step-by-step explanation:

To prove :- Circumference (c) of a circle is directly proportional to its radius (r)

⏺️ We know circumference ( c ) = 2 π r

=> c = 2 π r

⏺️ We know 2 π is a constant let suppose k

=> c = k r

Answer 2

It is denoted as c ∝ r

• It in common is a geometrical shape that has an infinite radius, complex chords, and apparent diameters.
• The given condition denotes that there is some constant k such that for all circles.
• Also,  that if the radius of the figure is doubled, then in that case, its circumference is also doubled.
• Such a relationship of the circumference (c) of a circle is directly proportional to its radius ( r) in symbol form is described as -  c ∝ r