A circle have diameter 2 cm.A small circle is extracted from that of 2mm. how many such circles can be obtained??
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you can get this by dividing the area of big circle by area of small circle...
area = piRsq
area of big circle 3.14×1×1=3.14 cm.sq
area of small circle= 3.14×1×1=3.14mm
converting 3.14mm into cm
1cm=10mm
so, 3.14/10
o.314cm.sq
now total no. of circle obtain
3.14/0.314= 10
so total 10 circles obtain..
area = piRsq
area of big circle 3.14×1×1=3.14 cm.sq
area of small circle= 3.14×1×1=3.14mm
converting 3.14mm into cm
1cm=10mm
so, 3.14/10
o.314cm.sq
now total no. of circle obtain
3.14/0.314= 10
so total 10 circles obtain..
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