Rounding Decimals pi issue

[ProduceTheMoose]

On the "Rounding decimals Arithmetic task", I was asked to round 83,960.11 to the nearest hundred, which I did, but when I submitted my answer the answer box said "Your answer is close, but you may have approximated pi. Enter your answer as a multiple of pi, like 12 pi or 2/3 pi", and I'm quite sure rounding numbers like that has nothing to do with pi.