if the area of a circle is 50.24cm.find its circumference

Area of a circle is 50.24cm2Area of a circle of radius r is given by πr2So πr2=50.24cm2 and π=3.14r2=50.243.14=16r = 16=4cm And the circumference of a cicle is given by 2πrSo circumference = 2×π×48×3.14=25.12m Ans

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area of circle=r2

50.24=22/7*r2

50.24*7/22=r2

2.28*7=r2

15.96 =r2

3.99 cm =r

cicumfernce=2r

=2*22/7*3.99

=25.08 cm

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