bent four-sided figure

noun
UK /bɛnt fɔː ˈsaɪdɪd ˈfɪɡə/
US /bɛnt fɔr ˈsaɪdɪd ˈfɪɡjər/

A bent four-sided figure is a shape with four straight sides that is not flat but has a bend or angle in it.

The kite looked like a bent four-sided figure as it twisted in the wind.


OTHER MEANINGS

2. A quadrilateral whose sides are not all in one plane, so it appears folded or bent.

The paper model formed a bent four-sided figure when folded along its diagonal.

3. A four-sided outline with one or more reflex interior angles, giving it a dented look.

The arrowhead shape is a bent four-sided figure with one inward-pointing corner.

4. A four-sided frame or border that has been physically warped or curved.

After the rain, the wooden picture frame became a bent four-sided figure.