Across
- 3. Triangle A triangle where one of its interior angles is a right angle (90 degrees).
- 5. prism A solid (3-dimensional) object which has six faces that are rectangles.
- 8. Four coplanar line segments linked end to end to create a closed figure. A 4-sided polygon.
- 9. A 4-sided polygon where all interior angles are 90°.
Down
- 1. A shape that only has two dimensions (such as width and height) and no thickness.\
- 2. A quadrilateral that has four right angles and four equal sides.
- 4. A quadrilateral with both pairs of opposite sides parallel.
- 6. A two-dimensional figure that, when folded, forms the surfaces of a three-dimensional object.
- 7. The number of square units it takes to completely fill a space or surface.
- 9. A quadrilateral with all four sides equal in length.