Answer:

answer is 2cm

Step-by-step explanation:

4 - 3 = 1cm

1 × 2 = 2cm

Verified answer

Given :-

a circular sheet of radius 4 cm and radius of circle 3 cm is removed.

Outer Radius = R =4 cm

Inner Radius r=3 cm

Area of remaining sheet [tex]\tt =\pi R^{2}-\pi r^{2}[/tex]

[tex] \[ \begin{array}{l} \rm =\pi\left(R^{2}-r^{2}\right) \\ \\ \displaystyle \rm=\frac{22}{7}\left(4^{2}-3^{2}\right) \\\\ \\ \displaystyle \rm =\frac{22} {\cancel{7 \ }} \times \cancel{ 7 \ }\\\\ \\ \boxed{\color{magenta} \displaystyle \rm =22 \: cm ^{2}} \end{array} \][/tex]

Hence, area of remaining sheet is 22 cm².