Haunch
Spandril
Soffit
Rise
Answer is Right!
Answer is Wrong!
The correct answer is B. Spandril.
A spandrel is the triangular space between the curve of an arch and the rectangular frame enclosing it. It is often filled with decorative elements, such as moldings, sculpture, or mosaics.
A haunch is the curved surface of an arch between the crown and the springer. The springer is the point where the arch starts to curve.
A soffit is the underside of an arch or lintel.
A rise is the vertical distance between the springing line and the crown of an arch.
The spandrel is the only option that is a triangular space. The other options are all parts of an arch, but they are not triangular spaces.