Answer:
The diameter of a tire with a circumference of 78.5 inches is approximately 25 inches.
Explanation:
To find this value, we used the formula:
diameter = circumference / π
Plugging in the values given, we get:
diameter = 78.5 inches / 3.14 = 25 inches
This calculation assumes that the tire is circular and inflated to its normal shape. If the tire is damaged or underinflated, the diameter may be different.