Question

find the area of the shaded portion​

Answer 1

$<h2 > heya$

$<h5 > answer....$

Area of the bigger circle =

$\pi \: r {}^{2}$

$\frac{22}{7} \times (10) { }^{2} \\ \\ \\ \frac{22}{7} \times 100 = 314.28cm {}^{2}$

Area of the smaller circle :-

$\pi \: r {}^{2} \\ \\ \\ \frac{22}{7} \times (8) {}^{2} = 201.14cm {}^{2}$

so, area of the shaded region is 314.28-201.14 =

$113.14cm {}^{2}$

Hope it helps

$<marquee > prabhudutt$

Answer 2

✌Hey mate.

Here is your answer.

In the following figure there are two circles .We will find the area of both the circles.Then we will subtract the areas to find the result that is the area of the shaded portion.

So area of the outer circle -

=22/7* 10 * 10

=314.28 cm²

Now, the area of the inner circle-

=22/7 * 8 * 8

= 201.14 cm²

Now we will subtract the results..

=314.28 - 201.14

= 113.14cm² (Answer)

Hope it helps...