Question

The area of circle is 616 cm2 . Find its diameter and circumfrence

Answer 1

Answer:

diameter =392

circumference of the circle =1232

Answer 2

Answer:

The diameter is 28cm and the circumference is 88cm.

Step-by-step explanation:

First,

area is 616 cm sq.

thereforw,

area = πr2

616 = 22/7 x r2

r2 = 196

r = 14.

Now,

diameter = 14 x 2 =28 cm

Circumference = 2πr

therefore,

2 x 22/7 x 14 = 88cm