Question

A quadrilateral, whose all sides are, equal​

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

Answer:

square

Step-by-step explanation:

it is a closed figure and all sides are 90 degrees