Venn diagram illustrating the relationship between quadrilaterals and polygons with right angles, with shapes categorized accordingly.

A Venn diagram on a whiteboard showing two overlapping circles labeled "Quadrilaterals" and "Polygons with right angles," with various geometric shapes placed in the appropriate sections, including a purple trapezoid, parallelogram, and square in the quadrilaterals circle, and a red plus sign, yellow triangle, and blue trapezoid in the right angles circle. A question at the top asks, "Where does this shape belong in this Venn diagram?" with a purple right trapezoid above the diagram.