25.7.3 Test (CST): Quadrilaterals and Other Polygons
Question 13 of 25
If PQRS is rhombus, which statements must be true? Check all that apply.
P
S
R
A. PR is perpendicular to QS.
B. PQR is supplementary to QPS.
☐ C. PS is parallel to QR.
D. ZQPS is supplementary to QRS.
E. PR & QS
F. PQ = RS



Answer :

In a rhombus, the following geometric properties are always true:

Statement A: PR is perpendicular to QS.
- This is true. In a rhombus, the diagonals (PR and QS) are always perpendicular to each other. They bisect each other at right angles (90°).

Statement B: PQR is supplementary to QPS.
- This is true. In a rhombus, consecutive angles are supplementary to each other. Since PQR and QPS are consecutive angles, they add up to 180°.

Statement C: PS is parallel to QR.
- This is true. In a rhombus, opposite sides are always parallel. Therefore, PS is parallel to QR.

Statement D: ZQPS is supplementary to QRS.
- This statement is false. The notation here is incorrect and ambiguous; ZQPS is not a standard geometric notation. The intended meaning seems to be that QP and QR angles should add up to 180°, but this would only be correct if we were discussing consecutive angles in the context properly defined.

Statement E: PR & QS
- This statement is incomplete and without a clear context. It provides no meaningful information about the geometric properties.

Statement F: PQ = RS
- This is true. In a rhombus, all sides are equal. Thus, PQ is equal to RS.

Based on these explanations, the statements that are true are A, B, C, and F.