Question

The radius of circle is 10cm.Find its area​

Answer 1

Question -:

The radius of circle is 10cm.Find its area

we have to find area of circle

FORMULA

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

let's find the area of circle whoes radius is 10 CM

$\dashrightarrow \: \frac{22}{7} \times {10}^{2}$

$\dashrightarrow \: \frac{22}{7} \times 100$

$\dashrightarrow \: \frac{2200}{7} = 314.28 \: {cm}^{2}$

Hope this will help you

Thank you ..

more to know

$\pi = 3.14 \: or \: \frac{22}{7}$

Answer 2

Answer:

are of circle = 314² cm

Step-by-step explanation:

area of circle = π r²

=

$= 3.14 \times {10}^{2} \\ = 3.14 \times 10 \times 10 \\ = 3.14 \times 100 \\ = {314}^{2}cm$

Note: default value of π is 22/7 or 3.14

so whenever you have not provided by π in the sum use 3.14 or 22/7 in the place of pie.