Example 2

Consider the inscribed quadrilateral below. Do the relationships discovered between the angles in Example 1 still hold for the angles in this quadrilateral?
  1. Calculate the measures of all four angles of quadrilateral .
  2. Find the sum of the measures of and .
  3. State your conclusion.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information.