On his math test, Balavan wrote that a four-sided polygon that has at least two right angles must be a rectangle or a square. Denna wrote that a four-sided polygon needs at least three right angles to be a rectangle or a square. Who is right? Explain your answer.
Answer
Answer:
The sum of the angles of the quadrilateral is 360 and a rectangular square has 490° angles if three angles are 90 the totals 270 so the fourth angles 90