Question

How many circles of radius 7 cm can be cut from a paper of length 50 cm and width 32 cm.

Answer 1

radius of circle= 7cm
area of circle =pi.r^2
=22/7×7×7
= 154cm2 length of rectangle=50
breadth. =32 cm
area of rectangle=l×B
=50×32cm
area of rect.=1600cm2
..no of circles which can be cut out from piece of paper.=
paper area/area of circle.
=1600 / 154
= 10 circles can be cut out from that rectangular..

Answer 2

Answer:No of circles =62

Remaining rectangular sheet =52

Step-by-step explanation:Area of the circle =pi r^2

=22/7×77×77

=164cm^2

Area of the rectangle =l×b

=120×80

=4800

No of circles = Area of the rectangle/Area of the circles

=9600/124

=62

Area of 72 circles = 62×154

= 9548

Remaining rectangular sheet =9600-9548

=52cm