Across
- 2. The flat, two-dimensional figure that can be folded to form a three-dimensional figure.
- 3. A closed shape with straight sides (e.g., triangle, square, rectangle, parallelogram, hexagon).
- 9. Lines that intersect to form right angles
- 10. A three-dimensional solid shape with six faces that are all rectangles.
- 11. A perpendicular line segment from the vertex of a triangle to the opposite side (the base). In a parallelogram, it is a perpendicular line segment from the base to its opposite side; the height of the figure.
- 12. The measure of the total area occupied by the surface (outside) of a three-dimensional object. It is measured in square units.
- 13. The amount of space inside a three-dimensional object; measured in units cubed.
- 14. lines that never intersect and are always the same distance apart
- 15. The number of square units (e.g., square feet) that make up the inside of a two-dimensional shape.
Down
- 1. A three-dimensional shape that has a rectangular base and triangular faces that meet at the apex, which is the point, or vertex, farthest from the base.
- 4. A figure that can be divided into more than one basic shape. For example, the trapezoid is composed of a square and a triangle.
- 5. The distance around a two-dimensional shape.
- 6. A quadrilateral with two pairs of parallel sides.
- 7. A 4-sided, closed figure.
- 8. The side of a figure that is perpendicular to the altitude; the bottom of the shape.