For 2D shapes: Square, equilateral triangle, any regular polygon (ie. regular pentagon, regular hexagon, etc.) A cube.
A square has 4 equal sides with 4 right angles.
It is a square that has 4 equal sides and 4 right angles.
A seven sided shape (with seven angles) is called a heptagon.
That shape is a square. A square is a special kind of rhombus, and a rhombus is aspecial kind of parallelogram. So the shape described in the question is a square,a rhombus, and a parallelogram.ALSO . . . any polygon with more than four sides can have four equal sidesand four right angles.
Rhombus
A square has 4 equal sides with 4 right angles.
A parallelogram has both pairs of opposite sides parallel but no right angles. A special kind of parallelogram is a rhombus which has all its sides of equal length
There cannot be a triangle which has 2 equal sides and 3 equal angles. The number of sides and angles which are equal must be the same: 0, 2 or 3.
It is a square that has 4 equal sides and 4 right angles.
A seven sided shape (with seven angles) is called a heptagon.
A triangle that has three equal sides, and therefore three equal angles, is called an equilateral triangle.
Square.
That shape is a square. A square is a special kind of rhombus, and a rhombus is aspecial kind of parallelogram. So the shape described in the question is a square,a rhombus, and a parallelogram.ALSO . . . any polygon with more than four sides can have four equal sidesand four right angles.
Isosceles
Rhombus
A regular polygon
square