Question

What is the best approximation for the circumference of a circle with a radius of 125 m?

Use 3.14 to approximate pi.

392.5 m

785 m

1570 m

3140 m

Answer 1

forumla for circumference is
pi x diameter
or
pi x 2 x radius
so we are going to use the second formula to estimate the answer without a calculator.
3 x 2 x 125
3 x 2 =6
6 x 125 = 750.
the closest answer is 785m. That is the answer.

Answer 2

(B) 785m

Explanation:

It is given that the radius of the circle is 125m and we have to find the circumference of the circle.

Then, the circumference of the circle is calculated as:

Circumference=
`2{\pi}r`

Circumference=
`2(3.14)(125)`

Circumference=
`785m`

Thus, the circumference of the circle is 785m.