Across
- 6. A quadrilateral with one pair of parallel sides.
- 7. When one half of a figure is a mirror image of the other half.
- 8. A three-dimensional shape with a polygonal base and triangular faces that meet at a single vertex.
- 10. The point where the altitudes of a triangle intersect.
- 12. A transformation that slides a figure in a straight line from one position to another without rotating or resizing it.
- 14. A line segment that passes through the center of a circle and has both endpoints on the circle; it is twice the length of the radius.
Down
- 1. A transformation that turns a figure around a fixed point.
- 2. The amount of space inside a three-dimensional object.
- 3. A quadrilateral where opposite sides are parallel and equal in length.
- 4. Lines Two lines that are in the same plane and never intersect, no matter how far they are extended.
- 5. Theorem A fundamental theorem in geometry that relates the sides of a right triangle:
- 7. When one half of a figure is a mirror image of the other half.
- 9. Line A line that intersects a curve at two or more points.
- 11. A transformation in geometry that enlarges or shrinks figures, keeping the shape but altering its size. It is defined by a center of homothety and a scale factor.
- 13. A polygon with six sides.
- 15. A part of the circumference of a circle.