Answer:
Q1, Q2 and Q3 are all congruent.
Step-by-step explanation:
As quadrilaterals are drawn on a Cartesian graph, it is easy to see that Quadrilateral−1, Quadrilateral−2 and Quadrilateral−3 are all congruent, while Quadrilateral−4 is different.The sides of Quadrilateral−1, Quadrilateral−2 and Quadrilateral−3 can be found using Pythagoras theorem and are {2,2,√10,√2} units. Even corresponding angles as well as diagonals two are congruent in these three quadrilaterals.Naming them as Q1, Q2, Q3 and Q4 respectively, we can say that pair wise Q1≡Q2, Q2≡Q3 and Q1≡Q3