Question

d=? c=? if r = 3.5 cm how to solve this​

Answer 1

Answer:

Given radius of the circle is r =3.5cm

as we know that

perimeter of circle with radius r is 2πr and

area of circle is πr²

perimeter of Circle is 2π(3.5)² =22×7×7

________

7×4

38.5cm²