The architect designed a striking pentagonal pavilion that caught everyone's attention.

The pavilion's roof was pentagonally arranged around the central skylight, creating a unique pattern of light.

The students drew a perfect pentagon on the whiteboard to demonstrate how interior angles add up.

After the ceremony, we toured the Pentagon to learn about American defense history.

The students arranged colorful pentagons on the bulletin board to create a mosaic.

Leftist theorists warn that pentagonism marks a stage beyond imperialism in which U.S. military dominance reshapes global politics.

The medieval cartographer described the fortress as pentagonous, using an obsolete adjective that signaled its five-sided shape.

The architect used a pentagonal prism as the central motif in the sculpture.

The artist arranged a set of pentagonal prisms on the gallery floor to study how light refracted through their angles.