Question

1
The area of the circle is 616 cm
Find the circumference with explanation ​

Answer 1

Answer:

hi

Step-by-step explanation:

Area=616

Using the formulas:

A=πr2

C=2πr

Solving for circumference (c)

C=2πA

=2·π·616≈87.9823

Hope this helps you..

Answer 2

Answer:

Cirfumference of the circle = 88cm.

Explanation:-

GIVEN

Area of the circle = 616 cm².

We, know the formula of area of circle = πr²

$\implies$ πr² = 616

$\implies \dfrac{22}{7} * r^{2} = 616$

$\implies 22 * r^{2} = 616*7$

$\implies 22r\² = 4312$

$\implies r^2 = \dfrac{4312}{22} = 196$

$r^2 = 196\\\\r = \sqrt{196} = 14$

♤ Radius 'r' of the circle =  14cm.

Circumference

Circumference of a circle = 2πr

Putting , π = 22/7 and r = 14 cm.

$Cirfumference = 2 * \dfrac{22}{7} * 14$

♤ Cirfumference = 88cm.