Question

find the circumfences of a circle whose radius is 3.5​

Answer 1

Answer:

circumference = 2πr

= 2×22/7×3.5

= 22

HOPE IT HELP U..

Answer 2

Answer:

The formula of finding circumference of circle is 2πr

π This specific symbol has the value of 22 / 7.

r denotes radius of the circle.

Therefore the answer is 2×22/7×3.5

= 7 you can calculate.

Understanding the formula π= Circumference/ diameter.

we know diameter=2r

Therefore,

Circumference/2r×r×2= Circumference.

So, this is the formula