Answer:
20mm
Step-by-step explanation:
An equilateral triangle has all equal sides. So the length of the sides is equal to P/3, where P equals the perimeter. Since in this question, the perimeter is 60, X would be equal to 60/3. Therefore, X=20mm, because 60/3=20.
20 degrees
well, if each side is equal and there are three sides that together add up to 60, you would divide 60 by 3 to get 20 degrees.
12
All sides are the same
the answer is 3.448275862068966
The radical form of 3 2/3 is
