Answer: 150.72 units
Step-by-step explanation: To find the circumference of a circle, you can use the formula C = πd, where C represents the circumference and d represents the diameter of the circle. However, in this case, you mentioned using 3 for π. So, if the diameter of the circle is 48, you can substitute the values into the formula as follows:
C = 3 * 48
C ≈ 150.72
Therefore, the circumference of the circle, using 3 for π and with a diameter of 48, is approximately 150.72 units.