| Answer | Crossword Clue |
|---|---|
| OCTAGON | Shape with 135-degree angles |
| OCTAGON | It has 135-degree angles |
| ELL | 90-degree angle's shape |
| DECAGON | Shape whose regular version has 144-degree internal angles |
| LBARS | Construction beams with 90-degree angles |
| RECT | Shape with four right angles (abbr.) |
