Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter your answer as a decimal.

Question

i need help awnsering this question its really hard for me to understand what it means can u guys help me out plz

 

Answer 1

If your computed answer is 75(pi), that's considered exact.

If you calculate this using pi = 3.1416 (an approximation), you get an answer to four decimal places. Not "exact".