Answer:

Explanation:
Given :-

To find :-

Solution :-
To Find the approximate circumference when the diameter is given,Use this formula :-

Note: d means diameter.
[Another Note: π is multiplied with diameter(d)]
We know that the value of π is,

So, put the value of π [3.14] and diameter [3m] :-
As we need to find the circumference in "m", keep 3.14 × 3 in brackets and keep "m"outside the Brackets.

Simplify the RHS.
Multiply 3.14 and 3:-

We are done!
Hence, the circumference of the circle is 9.42 m.

I hope this helps!
Please let me know if you have any questions.