It is the base.
Divide the length of one side by the length of an adjacent side.
It is usually called the "base".
You cannot. With only the base given (a parallelogram) you don't even know what the shape is: it could be a parallelepiped, or a parallelogram based pyramid or one of several other shapes.
A parallelogram is just a rectangle leaned to one side
Its base.
Its base.
It is the base.
Divide the length of one side by the length of an adjacent side.
It is usually called the "base".
You cannot. With only the base given (a parallelogram) you don't even know what the shape is: it could be a parallelepiped, or a parallelogram based pyramid or one of several other shapes.
A parallelogram is just a rectangle leaned to one side
If and when two parallelograms are similar, you know that the ratio of two side lengths within one parallelogram will describe the relationship between the corresponding side lengths in a similar parallelogram. If and when two parallelograms are similar, you know that the ratio of corresponding side lengths in the other parallelogram will give you the scale factor that relates each side length in one parallelogram to the corresponding side length in a similar parallelogram.
A parallelogram is a shape or figure with Four sides that have one of the opposite sides of one side the same lenth. So a square IS a parallelogram.
A pentagon
perimeter of a parallelogram = 2(w+h) where:w is the base length of the parallelogramh is the side lengthIf you know the length of one side, then the opposite side must have the same length.This is not enough information to fine the perimeter since you have only h or w and not both.
It is a parallelogram.