Final answer:
The circumference of a circle with a diameter of 10 m is 31.4 m when using the value 3.14 for pi (π).
Step-by-step explanation:
To find the circumference of a circle with a given diameter, you can use the formula C = πd, where C is the circumference, π (pi) is approximately 3.14, and d is the diameter of the circle.
Since the given diameter is 10 m, you simply multiply 3.14 by 10 m to get the circumference.
The calculation is as follows:
C = 3.14 × 10 m
= 31.4 m
Therefore, a circle with a diameter of 10 m has a circumference of 31.4 m when using 3.14 for π.