math project

1. A perpendicular line segment of one side joining the opposite vertex of a triangle.
3. The side of a right angled triangle that is opposite to the right angle.
6. A polyhedron composed of four triangular faces, three of which meet at each corner or vertex.
9. A line segment connecting two consecutive midpoints of a triangle.
10. The point where the three altitudes of a triangle meet.
11. A triangle with all three sides unequal.
13. A line segment joining the vertex to the mid-point of the opposite side of a triangle.
14. The point of a triangle where the three medians meet.
16. The side of a triangle which is perpendicular to the altitude.

2. A triangle with three equal sides.
4. A triangle with one angle more than 90°.
5. The theorem which states in any right triangle, the square of the length of the hypotenuse equals the sum of the squares of the lengths of the two other sides.
7. A triangle whose angles are all equal.
8. A triangle with two equal sides.
12. A triangle with all three angles less than 90 degress.
15. Triangle that does not have an angle that measures 90°.