Find the circumference of the circle. Use 3 as the estimate of pie. Diameter = 10 mm

To find the circumference of the circle, we can use the formula:

Circumference = π × Diameter

Here, the given diameter of the circle is 10 mm and we are estimating the value of π to be 3.

So,

Circumference = π × Diameter
Circumference = 3 × 10
Circumference = 30 mm

Therefore, the circumference of the circle is 30 mm.