If the areas of two rhombi are equal, are the perimeters sometimes, always or never equal. explain your answer – you can use examples with actual numbers to do so. equalif the areas of two rhombi are equal

If the areas are equal then the perimeters are also equal.
The area of a rhombus  = length of base *  altitude.  To keep the area the same  we would have to  keep the same base and move the opposite side so its parallel to the base. But doing this will lengthen the other 2 sides of the figure so its no longer a rhombus.

21 is the answer the answer is 21

A. -10 is the value of x