Diametre of a circle is 2.8 cm .Find its circumference. When π =3.14
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Step-by-step explanation:
1st method
Diameter of circle =2.8cm (given)
Circumference of circle when diameter is given =πd
hence
Circumference=3.14×2.8
=8.792cm
2nd method
Diameter of circle =2.8 cm (given)
Diameter is double of radius
hence
Radius =2.8/2=1.4
Circumference of circle=2πr
Circumference=2×3.14×1.4
=8.792
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