Find the area of circle if it's diameter 42cm
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Answered by
8
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d=42
r=21
area of circle is pi r^2
22/7×21×21
=1386 cm^2
✔✔✔✔✔✔✔✔
this is area of circle
d=42
r=21
area of circle is pi r^2
22/7×21×21
=1386 cm^2
✔✔✔✔✔✔✔✔
this is area of circle
Answered by
3
r=1/2d
=1/2×42
=21cm

a=22/7×21×21
=22/7×441
=22×63
=1386cm
=1/2×42
=21cm
a=22/7×21×21
=22/7×441
=22×63
=1386cm
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