Question

From a circular sheet of radius 4cm , a circle of radius 3cm is cutout . Calculate yhe area of remaining sheet after the smaller circle is removed​

Answer 1

Answer:21.96cm^2

Step-by-step explanation:

Area of circle=

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

r=4cm

A=3.14*16

=50.24cm^2

r=3cm

A=3.14*9

=28.26cm^2

Area of the remaining sheet:50.24-28.26=21.98

Answer 2

Step-by-step explanation:

Area of Circular sheet= Pie×r²

=22/7×4cm×4cm

= 88cm×4cm/7

= 352cm²/7

Area of Circle removed= Pie×r²

= 22/7×3cm×3cm

= 198cm²/7

Remaining Sheet= Area of circular sheet-Area of Circle removed

= 352cm²/7-198cm²/7

=154cm²/7

= 22 cm²