A cloister is a type of church! It was back in the medival times. I'm in the sixth grade! There are a few cloisters still here but they're very rare! What is a Cloister nun? Ask in another question and I'll answer! Hope this is helpful!
The mean distance is the same as the mean of a set of numbers,but this time, instead of them just being numbers, they're lengths. You just simply add up all the numbers and divide the total length,...