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.
parrallelogram
rectangle
A cuboid is a three-dimensional shape with six rectangular faces, eight vertices, and twelve edges. It has opposite faces that are equal in size and shape, and all angles are right angles. The volume of a cuboid is calculated by multiplying the length, width, and height together.