Question

if the adjacent sides of a quadrilateral are equal and each angle is 90 degree then the quadrilateral is _​

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.

Answer 2

A rhombus is a parallelogram in which adjacent sides are equal. A rectangle is a parallelogram in which one angle is of 90°. A square is a parallelogram in which adjacent sides are equal and one angle is of 90°. In a parallelogram, opposite sides are equal, opposite angles are equal and diagonals bisect each other.

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