Ah, what a lovely question! The shape you're thinking of is a triangle. Triangles have three straight sides and no right angles. They come in all different sizes and can be found in nature and in art. Just imagine all the beautiful landscapes you could create with triangles!
A shape that has four straight sides and four angles is defined as a quadrilateral. If all four angles are right angles, it is a rectangle, and if all four sides are congruent, it is a square.
A shape with parallel sides but no right angles is called a parallelogram
A RECTANGLE has 4 sides and 4 right angles.
Squares and rectangles have a two-dimensional shape with four sides and four right angles.
A rhombus has four equal sides but no right angles.
square
hexagon and octagon.
a Rhombus...
A rhombus is one of them
A shape with four equal straight sides is a square. In addition to having equal sides, a square also has four right angles. Another example of a shape with four equal sides is a rhombus, although its angles are not necessarily right angles. Both shapes are classified as quadrilaterals.
A rectangle book has a rectangular shape, with four straight sides and four right angles.
A 2D shape with four straight sides and no right angles is called a rhombus. In a rhombus, all four sides are of equal length, but the angles are oblique, meaning they are either acute or obtuse. Another example of such a shape is a trapezoid that does not have any right angles. Both shapes are classified as quadrilaterals.
A shape that has four straight sides and four angles is defined as a quadrilateral. If all four angles are right angles, it is a rectangle, and if all four sides are congruent, it is a square.
A shape with five sides would be a pentagon, but a shape can not have 5 right angles. Squares and Rectangles are both shapes with 4 sides and 4 right angles. They are the only shape with the same amount of right angles as there is sides.
A shape with parallel sides but no right angles is called a parallelogram
A straight line
A RECTANGLE has 4 sides and 4 right angles.