Final answer:
To find the diameter, divide the circumference by π. With a circumference of 81.64 cm and π ≈ 3.14, the diameter is 26 cm.
Step-by-step explanation:
To find the diameter of a circle, we can use the formula C = πd, where C is the circumference and d is the diameter. Rearranging the formula, we get d = C/π. Given that the circumference is 81.64 cm and π is approximately 3.14, we can substitute these values into the formula to find the diameter:
d = 81.64 cm / 3.14
d = 26 cm
Therefore, the diameter of the circle is 26 cm.