Answer:
Rhombus
Step-by-step explanation:
The statement "A parallelogram with a right angle that is not a rectangle" describes a specific type of parallelogram known as a rhombus. A rhombus is a quadrilateral with all sides of equal length and opposite angles are equal. It also has diagonals that intersect at right angles, making it a parallelogram with a right angle that is not a rectangle.
This can be verified through geometry principles and definitions of different types of quadrilaterals. The properties of a rhombus align with the description provided in the prompt.
Therefore, the correct answer to the prompt is that the described shape is a rhombus. This answer is based on deductive reasoning and geometry principles, and it aligns with the properties of a rhombus as defined in mathematics.