Question
If the perimeter of a protector is 72cm then its radius is
Answers
Steve
hmmm. what is a protector?
Do you mean protractor? If so, then it is a half circle, and the perimeter p = πr.
Unless you also include the straight side, in which case p = 2r+πr.
Do you mean protractor? If so, then it is a half circle, and the perimeter p = πr.
Unless you also include the straight side, in which case p = 2r+πr.