Base is 16 cm squared, Width is 2.5 cm. what is the perimeter and height

Since you have given only data for two dimensions, we cannot determine the height.

width * length = area

2.5 * length = 16

Length = 6.4

To find the perimeter and height of a shape, we need to know the shape of the object you are referring to. Can you please provide more information about the shape?