Across
- 2. a 3D shape that has a circle for its base and comes to a point on the top (or bottom if you flip it)
- 6. when two lines make a 90 degree angle, and their slopes are opposite reciprocals
- 7. the first reason in a proof is always this
- 10. spinning a shape clockwise or counterclockwise around a point
- 12. sliding a shape up, down, left or right - the shape stays congruent and does not change orientation
- 13. when two angles add up to 180 degrees they are _________
Down
- 1. flipping a shape over a line to make a mirror image of it
- 3. _____ angles are on opposite sides of an intersection of lines and are congruent
- 4. alternate ______ angles are on the inside of parallel lines on opposite sides of the transversal and are congruent
- 5. same shape and same size
- 8. when two lines have the same slope they are _____
- 9. half of the diameter of a circle
- 11. a 3D shape with 2 bases that are triangles and the sides are rectangles is called a triangular ______