1.

Find the circumference of a circle whose diameter is 4.9 m.

Answer»

4.9 m

Here, diameter of the circle is given d = 4.9 m = (49/10)

Circumference of a circle when diameter is given = πd units

Where, π = (22/7)

= (22/7) × (49/10)

= 11 × (7/5)

= 15.4 m



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