How many circles of radius 7 cm can be cut from a paper of length 50 cm and width 32 cm.
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Answered by
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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..
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..
raveesh255:
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its wrong
but I have checked it twice...answer comes in decimals..
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Answered by
1
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
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