Question

calculate the perimeter oa a circle with radii 4cm,5cm,6cm and 7cm. find and compare the perimeter of this circle by measuring the length of a boundry by using a thread​

Answer 1

Answer:

if i would know i would have told to you but i am just 6th grade sorry.....

Step-by-step explanation:

Answer 2

perimeter of a circle =2*pi*r