An Octogan.
Then they both will be identical in sides and angles
Pentagon
pentagon
pentagon pentagon
A square is a four-sided shape with all sides equal and all angles equal.
You are a regular 8 sided octagon
Then they both will be identical in sides and angles
Pentagon
pentagon
Any regular shaped polygon has equal angles and equal sides
pentagon pentagon
A hexagon has all six sides in equal length and all angles in equal measure.
A square is a four-sided shape with all sides equal and all angles equal.
The rectangle
square
A shape with equal adjacent angles is a rhombus. In a rhombus, all four sides are of equal length, and each pair of adjacent angles are equal. This means that opposite angles are also equal, resulting in a symmetrical shape. Other shapes with equal adjacent angles include rectangles and squares, where adjacent angles are 90 degrees.
Its a diamond :]