Solutions A plane figure with twelve straight sides and twelve angles has 6 entries with similar clues
- 7-letter words
- polygonAny plane figure with straight sides
- hexagonPlane figure with six straight sides and angles
- 8-letter words
- heptagonA plane figure with seven straight sides and seven angles
- pentagonA plane figure with five straight sides and five angles
- 9-letter words
- rectangleA plane figure with four straight sides and four right angles
- 10-letter words
- hendecagonA plane figure with eleven straight sides and eleven angles