Any polygon with 4 sides is a quadrilateral
diagonals
There are infinitely many possible solutions because a quadrilateral with four sides of given lengths is not a rigid shape. It can be flexed - in the same way that a square can be flexed into a rhombus.
On a 3x3 pin board, you can make a total of 6 unique quadrilaterals. These include squares, rectangles, parallelograms, rhombuses, trapezoids, and kites. Each type of quadrilateral has specific properties and requirements, such as parallel sides or equal side lengths, that determine how they can be formed on the pin board.
they dont sting you at all
What do you mean by "length" as different from "side"? The multiplication will result in a number, that's it! Without knowing the angles and or the lengths of the other sides you have insufficient information to make any conclusions as to what that number represents. But if it is a right angled quadrilateral (a rectangle) you get the area.
draw a square then tilt one line from each pair of parallel sides away from its pair then adjust the lengths of the top and bottom sides to make it match
A quadrilateral is a polygon with 4 sides... so if it has 4 sides it is a quadrilateral. your question doesnt make sense because a 4 sided quadrilateral could be any quadrilateral at all.
Yes out of 4 sides.
123
Yes
4 lengths of 25m (not 25km) is 100m So 4x4=16 lengths to make 400m