Across
- 4. Two angles whose measures have a sum of 180°.
- 6. Pairs of angles that share a vertex and one side but do not overlap.
- 7. The opposite angles formed by two intersecting lines.
- 10. A geometric figure formed by the intersection of two rays or line segments (called the sides) with a common endpoint (called the vertex).
Down
- 1. Two angles whose measures have a sum of 90°.
- 2. A mathematical term that means to add.
- 3. The bottom line of a shape such as a triangle or rectangle.
- 5. A triangle with two congruent sides.
- 8. A polygon with three sides.
- 9. Angles that have the same measure.