1							2
3									4
					5
		6
		7					8
									9
						10
11													12
											13

Across 4. An angle that is greater than 180 degrees but less than 360 degrees 6. Having all sides equal 8. A closed figure with 3 or more sides 9. An angle that is 90 degrees exactly 11. A polygon with all sides and angles equal 13. An angle that is less than 90 degrees but more than 0 degrees

Down 1. The line where 2 surfaces meet 2. A polygon with all sides and angles not equal 3. Having four sides 5. One of the lines that make a 2 dimentional shape 7. An angle that is 180 degrees exactly 10. A corner 12. An angle greater than 90 degrees but less than 180 degrees