The most basic answer would be a square, which is both symmetrical and regular.
However, rectangles are also symmetrical, as are hexagons with two opposing 90° angles and four matching 135° angles.
In fact, the number of potential shapes are infinite, unless you specify exactly how many right angles the shape must have.
A square shape for example has 4 right angles and a right angle is 90 degrees.
squares, right triangles, rectangles
Geometric shapes are precise and defined by mathematical properties, such as circles, squares, and triangles, with straight lines and angles. Organic shapes, on the other hand, are irregular and free-form, often found in nature and characterized by flowing, curved lines without specific measurements or angles. Geometric shapes are typically man-made and symmetrical, while organic shapes are asymmetrical and more fluid in appearance.
A square and a rectangle have 4 interior right angles also a right angle triangle has 1 right angle of 90 degrees
All polygons can have right angles except for circle and ovulated shapes. The only 'regular polygon' that has a right angle is the quadrilateral.
wich shaps have right angles
Most shapes have no right angles. Circle, pentagon, hexagon etc. Ones that do include the square and some triangles.
A square shape for example has 4 right angles and a right angle is 90 degrees.
Triangles
The diagonals of a square and a rhombus cross at right angles.
right triangle square rectangle
Acute angles
squares, right triangles, rectangles
square
A-F
quadrilaterals
Square, Rectangle