Across
- 6. the acute angles of a right triangle are complementary
- 8. a triangle with one obtuse angle
- 9. all sides congruent
Down
- 1. two lines that intersect at right angles
- 2. a triangle with one right angle
- 3. 3 acute angles
- 4. the sum of the measures of the interior angles of a triangle is 180
- 5. no sides are congruent
- 7. all angles congruent
- 10. at least two sides are congruent