pentagon
It is called a 'polygon'.
A quadrilateral or a four sided shape
A polygon may have many more than four sides, a triangle has only three vertices.
" A polygon is a closed figure bounded by three or more than three sides." A cube has twelve sides whereas a polygon has more than two sides. Since it is not mentioned which polygon we are talking about we can't tell if cube has more sides.
pentagon
It is called a 'polygon'.
Polygon.
Any regular polygon with more than 4 sides with have all its corners (vertices) equal. Furthermore, an irregrular polygon with more than four sides can always have four equal vertices.
A quadrilateral or a four sided shape
A polygon may have many more than four sides, a triangle has only three vertices.
How about: pentagon, hexagon, heptagon, octagon .... etc
A square always has, and any polygon with more than four sides can have.
" A polygon is a closed figure bounded by three or more than three sides." A cube has twelve sides whereas a polygon has more than two sides. Since it is not mentioned which polygon we are talking about we can't tell if cube has more sides.
-- A trapezoid always has.-- Any polygon with more than four sides can have, but doesn't always.
Sorry, you either have more than one right angle or more than four sides.
That depends somewhat on other characteristics of the polygon.-- If it has four sides and one pair of them is parallel and congruent, then theother pair must also be parallel and congruent, and it's called a parallelogram.-- If it has four sides, parallel and congruent opposite sides, and a right angle,then it's called a rectangle.-- If it has four sides and all four sides are congruent, then opposite sides must beparallel, and it's called a rhombus.-- If it has four sides and both pairs of sides are parallel and all four are congruentand it has a right angle, then it's called a square as well as a rhombus.-- Any polygon with more than four sides can have at least one pair of oppositeparallel congruent sides and possibly more, but doesn't necessarily have.-- If it's a regular polygon, then it has one or more such pairs of sides if, and only if,it has an even number of sides.-- In any case with more than four sides, the polygon is named for its number of sides.And I believe that pretty well covers it.