Final answer:
The TI-83+, TI-84, or similar models are commonly used calculators for evaluating polar integrals.
Step-by-step explanation:
The calculator used for polar integrals depends on the specific model and capabilities. One common calculator that can be used is the TI-83+, TI-84, or similar models. These calculators have built-in functions that can evaluate polar integrals. You can enter the polar equation and use the appropriate function to calculate the integral. For example, on a TI-83+ calculator, you can use the 'fnInt' function to find the value of a polar integral.