| altitudes definitions |
| # | Definition | Sets |
| 1 | heights above earth's surface | 4 sets |
| 2 | orthocenter | 3 sets |
| 3 | a perpendicular segment from a vertex of a triangle to a line containing the opposite side | 2 sets |
| 4 | perpendicular segments from a vertex to the line containing the opposite side | 1 set |
| 5 | what are inside the tirangle when it is acute? | 1 set |
| 6 | segments that connect a vertex to the opposite side at a perpendicular angle | 1 set |
| 7 | the line that contains the ---- of a triangle are concurrent | 1 set |
| 8 | if two triangles are similar then the measures of the corr ____________ are proportional to the measures of the corr sides | 1 set |
| 9 | line drawn to find height of triangle | 1 set |
| 10 | an elevated region; height | 1 set |
| 11 | segment from a vertex to opposite side and it's perpendicular to opposite side | 1 set |
| 12 | heights above earth | 1 set |
| 13 | connect vertices to opposite sides at 90ยบ | 1 set |