Crossword Puzzle 1-5

2. When both hypothesis and conclusion are negated
3. The longest side of a right angle triangle
5. Points that lie on the same straight line or in a single line
7. The middle point of a line segment
8. The intersection point of all the three interior angle bisectors of the triangle
9. Two lines in the same plane that are at equal distance from each other and never meet
14. To determine what the opposite of a given mathematical statement is
15. Represented by a dot on a graph

1. Line segment joining a vertex of the triangle to the midpoint of the opposite side
4. A triangle where all 3 sides are different lengths, and angles are different measures
6. Formed by switching the hypothesis and the conclusion
10. An angle less than 90 degrees
11. One side of a triangle
12. The centre point of the object
13. An angle that is exactly equal to 90 degrees