What is the circumference of a circle with a 19mm diameter?

Answer 1

The circumference of a circle can be calculated using the formula ( C = \pi \times d ), where ( d ) is the diameter. For a circle with a diameter of 19 mm, the circumference is ( C = \pi \times 19 \approx 59.69 ) mm. Therefore, the circumference is approximately 59.7 mm.