Across
- 3. the size of the outside of a shape
- 4. a triangle with a 90 degree angle
- 6. a shape with 4 equal sides
- 8. a triangle with an angle measuring more than 90 degrees
- 10. 3-D shapes with faces
- 11. a line dividing an angle into two equal parts
- 12. a shape with 6 sides
Down
- 1. a shape with 4 sides and 4 vertices
- 2. different ways to categorize shapes
- 5. the study of shapes, with area and perimeter
- 7. the size of the surface
- 9. lines where two sides of two polygons meet