Question

Q21. From a circular sheet of radius 10 cm , a circle of radius 4cm is
removed. What is the area of remaining sheet? (
$\pi$
= 3.14). *
​

Answer 1

Answer:

you are doing cheating

Step-by-step explanation:

Are kude se solve krna sikho

Answer 2

Answer:

Area of remaining sheet is 264sq.cm.

Step-by-step explanation:

Given that

Radius of circular sheet is 10cm

Radius of circle is 4cm

To find

Area of remaining sheet

Solution

As per given statement area of circle is removed by area of circular sheet

as

$area \: of \: circular \: sheet = \pi \times {10}^{2}$

$area \: of \: circular \: sheet = 3.14 \times 100 \\ = 314.159 {cm}^{2}$

now

$area \: of \: circle = \pi \times {4}^{2}$

$area \: of \: circle = 3.14 \times {4}^{2} \\ =50.24 {cm}^{2}$

now

$area \: of \: remaining \: sheet = 314.159 - 50.24$

hence by subtraction

$area \: of \: remaining \: sheet = 264 {cm}^{2}$