Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel.
A two-dimensional shape (polygon) is said to be "regular" (or equilateral) if all its sides are the same length and all its angles are the same angle. A regular pentagon, for example, has 72-degree angles on all five angles, and all its five sides are the same length.
A rectangle has 4 sides not the same length and 4 right angles.
When the 3-d shape is a prism and the cross section is in a plane at right angles to the length of the prism.
In a real star, no. In a 2-dimensional star-shape, no. In 3-dimensional star-shapes, yes, there can be.
Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel.
Squares and rectangles have a two-dimensional shape with four sides and four right angles.
A two-dimensional shape (polygon) is said to be "regular" (or equilateral) if all its sides are the same length and all its angles are the same angle. A regular pentagon, for example, has 72-degree angles on all five angles, and all its five sides are the same length.
A shape with opposite sides parallel and of the same length and four right angles is a rectangle.
A polygon; specifically a tetragon. A two-dimensional shape with four equal sides and four right angles is a square. A two-dimensional shape with two sets of equal sides and four right angles is a rectangle. A two-dimensional shape with two sets of equal sides and two sets of equal angles is a parallelogram. A parallelogram where each opposite angel bisects the shape is a rhombus. A two-dimensional shape with one set of equal, parallel sides and two sets of equal angles is a trapezoid. A three-dimensional shape with four triangular faces is a tetrahedron.
A rectangle has 4 sides not the same length and 4 right angles.
A shape that has four right angles is a rectangle. If all four sides are equal in length, then it is a square.
When the 3-d shape is a prism and the cross section is in a plane at right angles to the length of the prism.
In a real star, no. In a 2-dimensional star-shape, no. In 3-dimensional star-shapes, yes, there can be.
rectangle
parrallelogram
A rhombus.