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Humble Triangles
Angles, Triangles, and Lines
| Question | Answer |
|---|---|
| What type of angle measures exactly 90 degrees? | Right |
| What type of angle measures exactly 180 degrees? | Straight |
| What type of angle measures less than 90 degrees? | Acute |
| What type of angle measures more than 90 degrees? | Obtuse |
| Which triangle has 1 right angle? | Right triangle |
| Which triangle has all acute angles? | Acute triangle |
| Which triangle has 1 obtuse angle? | Obtuse triangle |
| Which triangle has all equal sides? | Equilateral |
| Which triangle has 2 equal sides? | Isosceles |
| Which triangle has no equal sides? | Scalene |
| Part of a line with 2 end points. | line segment |
| Part of a line with 1 endpoint and goes on forever in the opposite direction. | ray |
| Lines that stay the same distance apart forever. | parallel |
| Lines that cross at 1 point. | intersecting |
| Lines that intersect and form a 90 degree angle. | perpendicular |