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Across 4. A triangle with two acute angles and one right angle 8. An angle less than 90 degrees 12. A line that splits an angle into two equal angles and goes from the vertex to to the midpoint. This only occurs in isosceles triangles. (2 Words) 13. A triangle whose lengths are all different 14. A triangle with two congruent sides and two congruent angles 15. A line segment from the vertex of the triangle to the midpoint of the opposite side. Each triangle contains three. 16. the point in a segment that indicates the middle. 17. The longest side in a triangle

Down 1. An angle that is 90 degrees 2. exactly equal in size and shape 3. a theorem attributed to Pythagoras that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides 5. A triangle where all the sides are congruent and all the angles are congruent 6. The point of intersection of lines. It is also opposite to the base of the triangle 7. pair of matching angles that are in the same spot in two different triangles that are congruent. 8. A perpendicular line segment joining a vertex to the opposite side. 9. the sum of the measurement of the angles in a triangle( written in words) (3 Words) 10. An acronym for three words. When trying to find if two triangles are congruent we can look at the placement of two of the sides and one angle. If they are the same in both triangles we can use this theorem to conclude they are congruent triangles. 11. An angle that is greater than 90 degrees 13. An acronym for three words. When trying to find if two triangles are congruent we can look at the corresponding sides. If all are the same then we use this theorem to justify