In a parallelogram, the diagonals bisect each other. However, to determine the specific lengths of diagonals \( RT \) and \( SU \), we need more information about the lengths of the sides or the angles of the parallelogram. If you provide the lengths of the sides or any additional information, I can assist you in finding the lengths of the diagonals.
For any parallelogram, if the lengths of the sides are known, the diagonals can be calculated using the formula:
\[ d_1 = \sqrt{a^2 + b^2 - 2ab \cdot \cos(\theta)} \] \[ d_2 = \sqrt{a^2 + b^2 + 2ab \cdot \cos(\theta)} \]
Where \( d_1 \) and \( d_2 \) are the lengths of the diagonals, \( a \) and \( b \) are the lengths of the sides, and \( \theta \) is the angle between those sides.
Please provide more information, and I'll help you determine the diagonal lengths!