Question

if the circumference of a circle is 176mm find the area of the circle​

Answer 1

Step-by-step explanation:

2pi r = 176mm

r=176mm/2pi

= 28×10^-3

area of circle is = pi r^2

= 2.5( approximately)

Answer 2

Given -

Circumference of circle is 176 mm

To find -

The area of circle

Solution -

As we know that,

Circumference of circle = $2 \times pi \times r$

Put the given values in these formula we get

$176 = 2\pi \times r$

$\frac{176}{2\pi} = r$

$\frac{88}{\pi} = r$

The value of π is 3.14 .

$\frac{88}{3.14} = r$

$r = 28.02$

So,

Radius (r) is 28.02 mm.

Area of circle = $\pi {r}^{2}$

Put the value of r we get

Area of circle = $\pi \times {28.02}^{2}$

Square means multiply the given values with itself twice.

Square of 28.02 is 785.12

Area of circle = $\pi \times 785.12$

The value of π is 3.14.

Area of circle = $3.14 \times 785.12$

Area of circle = $2465.27$

Hence,

Area of circle is 2465.27 ${mm}^{2}$