The formula for calculation of circumference of the circle = d π or 2πr where d is diameter of circle and r is the radius of circle
As given in the question the circumference of the circle whose diameter is 2 cm is 6.28cm and we come to know that value of π used here is 3.14 and not 22/7
So, the circumference of the circle whose diameter is 1cm = d π
= 1 π
= 1 3.14
= 3.14 cm
Hence the circumference of the circle whose diameter is 1cm using the value of pi as 3.14 comes out to be pi that is 3.14 cm
To know more about circumference of the circle - https://brainly.com/question/11213974
#SPJ9
