Question

A circle of radius 3cm is cut from a rectangular piece of paper of dimensions 10×11 cm. Find the area of left over paper.​

Answer 1

Answer:81.71

Step-by-step explanation: area of a circle=πr^2

Therefore area of circle=22/7*3*3

=198/7

Area of a rectangle=l*b

Therefore area of rectangle=10*11

=110

Therefore cut off area=Area of a rectangle - area of a circle

So, cut off area= 110-198/7

= 770-198/7

= 572/7

= 81.71

Answer 2

l hope it will help you

Ans. Area of rectangle-area of circle =area of left paper

l×b-πr²

10×11-22/7×3²

110-28.2

81.8cm