Answer: No, it is not sufficient to know that opposite sides of the garden plot are congruent and parallel to determine that the garden plot is rectangular.
Explanation:
1. You have the following information given in the problem:
- Opposite sides of the garden plot are congruent.
- Opposite sides of the garden plot are parallel.
2. Therefore, keeping the information above on mind, you can conclude that the description is about a parallelogram, but to determine that it is rectangular, you need to know that the four interior angles measure 90° and the diagonals are congruent.