Across
- 1. a triangle with no congruent sides
- 4. angle formed by one side of the triangle and the extension of an adjacent side
- 7. the 2 angles formed by the base and the congruent sides of an isosceles triangle
- 10. The sum of the measure of the angles of a triangle is 180.
- 14. a triangle with one 90 degree angle
- 15. the side located between two consecutive angles of a polygon
- 16. If 2 angles and the nonincluded side of one triangle are congruent to the corresponding 2 angles and side of a second triangle, then the two triangles are congruent.
- 17. a triangle with three angles less than 90 degrees
- 18. a triangle with one angle greater than 90 degrees
- 19. 2 congruent sides of an isosceles triangle
- 20. an extra line or segment drawn in a figure to help analyze geometric relationships
- 21. If 3 sides of one triangle are congruent to 3 sides of a second triangle, then the triangles are congruent.
Down
- 2. a triangle with 3 congruent acute angles
- 3. Two polygons are congruent if and only if their corresponding parts are congruent
- 5. a triangle with 3 congruent sides
- 6. If 2 sides and the included angle of one triangle are congruent to 2 sides and the included angle of a second triangle, then the triangles are congruent.
- 8. an angle formed by two adjacent sides of a polygon
- 9. the 2 congruent sides of an isosceles triangle form this angle
- 11. the angles of a triangle that are not adjacent to a given exterior angle
- 12. The measure of an exterior angle of a triangle is equal to the sum of the measures of the 2 remote interior angles.
- 13. If the hypotenuse and leg of one right triangle are congruent to the hypotenuse and corresponding leg of another right triangle, then the triangles are congruent.
- 15. a triangle with AT LEAST 2 congruent sides
- 20. If 2 angles and the included side of one triangle are congruent to 2 angles and the included side of another triangle, then the triangles are congruent.