Question

Find the circumference of a circle whose radius is 3 1/2

Answer 1

Answer:

22

Step-by-step explanation:

circumference=2$\pi$r

⇒2 * 22/ 7 * 7/2

⇒2*11

⇒22

Answer 2

Circumference of a circle whose radius is 3$\frac{1}{2}$ is 22 units.

Given:

The radius of the circle is 3$\frac{1}{2}$ units.

To Find:

The circumference of the circle.

Solution:

Circumference is basically the perimeter of the circle.

The formula used in finding circumference of a circle is :

C = 2πr

where,

C is the circumference of the circle.

r is the radius of the circle.

Here,

r = 3$\frac{1}{2}$ = 7/2 units

Hence,

Circumference(c) = 2 x (22/7) x (7/2)

=> 22 units.

Hence, the circumference of circle is 22 units.

#SPJ2