Triangular

This god is cruel, nervous, and diabolic, with yellow wrinkly skin, small squinty eyes, a triangular nose, and bright teeth.

I punched two triangular holes in the tin.

A triangle has three corners and is triangular.

There is a triangular mirror at that cafe over there.

That small triangular wound that doesn't stop bleeding looks like the bite mark of a leech.

That small triangular wound that doesn't stop bleeding is probably the bite mark of a leech.

Cats have triangular ears.

The doors are triangular at that restaurant.

Triangular shapes jut from the building, and a prow dangles over a busy downtown street.

He hacks guitars out of old wood, including one created entirely from triangular scraps of highly-prized purpleheart wood that a carpenter had thrown away after completing a project.

A very neat old woman, still in her good outdoor coat and best beehive hat, was sitting at a polished mahogany table on whose surface there were several scored scratches so deep that a triangular piece of the veneer had come cleanly away,[…].