If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Quadrilateral problems on the coordinate plane


Rectangle ABCD is graphed in the coordinate plane. The following are the vertices of the rectangle: A(2,1), B(5,1), C(5,6), and D(2,6).
Given these coordinates, what is the length of side AB of this rectangle?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4