The distance formula and the Pythagorean theorem can be used to find length and the distance where the distance formula is mainly for distance and the Pythagorean Theorem is for length.
Pythagorean Theorem:
c^2 = a^2 + b^2
c^2 = c^2
Sqrt c^2 = Sqrt c^2
c = c
Distance formula:
d = sqrt (x2 - x1)^2 + sqrt (y2 - y1)^2
d = sqrt x^2 + sqrt y^2
d = x + y
d = distance between two points
(This is the best I can do with no numbers provided, I hope this helps)
