Question

(a) In the figure REST is a parallelogram
Find x and y
b) Identify all quadrilaterals that have
(1) Four sides of equal tongth.
(l) For tight angles​

Answer 1

Answer:

Square (regular quadrilateral): all four sides are of equal length (equilateral), and all four angles are right angles. An equivalent condition is that opposite sides are parallel (a square is a parallelogram), and that the diagonals perpendicularly bisect each other and are of equal length.