5 sides
The dimensions are 4 units by 15 units
In both cases, the area becomes 4 times what it was originally.
Area of any rectangle in square units is its length multiplied by its width.
The area of a rectangle does provide enough information about its dimensions. It is possible fo the rectangle to be long and narrow or squat and short (almost square).
Yes.
24
It is not possible to answer the question without additional information about the triangle and the rectangle.
The usual way to calculate the are of a rectangle is to multiply length x width.
It is not possible to provide any kind of answer without information on the relationship - if any - between the triangle and the rectangle.
42 square units.
You might want to investigate the rectangle that measures [ 6 by 8 ].
NO, because if you did it would be a square