Question

If radius of circle radius =10 then area of circle ​

Answer 1

Answer:

Area of circle is 314.28 ${cm}^{2}$

Step-by-step explanation:

Given -

Radius of circle is 10

To find -

The Area of circle

Solution -

As we know that,

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

Where, r is radius of circle

Put the value of r we get

Area of circle = $\pi \times {10}^{2}$

Square means multiply the given values with itself twice.

${10}^{2} = 10\times 10= 100$

Square of 10 is 100

Area of circle = $\pi \times 100$

The value of π is $\frac{22}{7}$

Area of circle = $\frac{22}{7} \times 100$

Area of circle = 314.28

Hence,

Area of circle is 314.28 ${cm}^{2}$

Answer 2

Answer:

Area of circle is 314.159 unit sq.

Step-by-step explanation:

Given that

Radius of circle is 10 unit

To find

Area of circle

Solution

As we know that

$area \: of \: circle = \pi \times {radius}^{2}$

put

$\pi = 3.14$

now

$area \: of \: circle = 3.14 \times {10}^{2}$

by multiplication we get

$area \: of \: circle = 314.159 {unit}^{2}$