No. A diagonal goes from corner to opposite corner, which will always be a longer distance than the side length. You can use Pythagoras' theorem to work out the length of the diagonals. It will be the square root of (a2+b2) where a and b are the long and short side lengths of the rectangle respectively. The result will clearly be greater than either a or b.
Chat with our AI personalities
Parallelogram and a rectangle
The answer will depend on what aspect you wish to sum: its side lengths, it interior/exterior angles, its diagonals.
You need more information: the length of a side. Then, since the diagonals bisect one another at right angles, you can use Pythagoras's theorem to calculate their lengths.
Lengths of: equal side+equal side+base = perimeter
9 is shortest integer side length greater than 17/2