Question

The area of a circle is 49π. What is its circumference

Answer 1

Short and Easy Soluntion :-

Circumfernce = 2πr

And Area = πr^2

Therefore πr^2 = 49π) (units^2)

r= 7 units (whatever given in the question)

Hence Circumference = 2×22/7×7 = 44 units.

HOPE IT HELPED

Answer 2

Given:

Area of the circle =  49π

To find:

Circumference of the circle

Solution:

The area of the circle is

= 49π

The formula to find the area of a circle is equal to the product of pie and the square of the radius

= πr²

Equating the values

πr²  = 49π

r² = 49

r = 7

The formula to find the circumference or the perimeter of a circle is equal to the product of pie and the radius multiplied by two.

= 2πr

Substituting the values

= 2×π×7

= 14π

Putting the value of π as 22/7

= 14 ×22/ 7

= 44

Therefore, the circumference of a circle with an area of 49π is 14π or 44 units.