Regular shapes:all sides and angles are the same Irregular shapes: different angle and sides
Squares are regular all the time. Diamonds, hexagons and pentagons are sometimes regular.
Platonic solids are 3D shapes formed using only regular shapes. Only 1 type of regular shape is used to make a platonic solid. Platonic solids are the simplest and purest form of 3D shapes.
leaf
Square Rectangle Rhombus Trapezoid
boogers
Regular shapes are both equilateral and equiangular. Irregular shapes may or may not be equilateral and equiangular.
boogers
Regular shapes have equal sides and angles, like squares and equilateral triangles. Irregular shapes have sides and angles of varying lengths and measurements, like rectangles and scalene triangles. Regular shapes are typically easier to calculate and work with compared to irregular shapes.
There are a lot more than 4 types. Some simple examples: regular polyhedra, other polyhedra, star shapes, ellipoids (including spheres), toroids (like cycle inner tubes), shapes with two "holes" in them, totally irregular blobby shapes.
There are different formulae for different shapes.
Yeah.
Regular shapes:all sides and angles are the same Irregular shapes: different angle and sides
The only similarities between these shapes are that:These shapes have all congruent interior anglesObviously, the shapes are regular and have equal sides.
A dodecahedron is an example of a Platonic solid, with 12 regular pentagonal faces. A decagonal prism and a hendecagonal pyramid are two more examples of non-regular 12 faced shapes.
Divide it into regular shapes which are calculable, and then add each of the (divided) shapes back together for your answer.
Regular shapes have equal side lengths and equal angles