Final answer:
The circumference of the temperature dial on the thermostat is 6π centimeters.
Step-by-step explanation:
The circumference of a circle can be calculated using the formula C = 2πr, where C is the circumference and r is the radius.
In this case, the radius of the temperature dial on the thermostat is 3 centimeters.
Substituting this value into the formula, we get:
C = 2π(3) = 6π
So, the circumference of the dial is 6π centimeters.