Fill in the blanks:

1. A ______ of a triangle connects one of its vertex to the midpoint of the oppsite side.

2. A triangle can have _____ altitudes.

3. Atriangle can have ____ medians.

4. In a _________ triangle two of its sides areits altitudes.

5. In a _________ triangle the median and the altitude are given by the same linesegment.

6. ___________ is the longest side in a right triangle.

7. The side opposite to the vertex B of ΔABC is _______.

8. A _______ is a simple closed curve made of three line segments.

9.In an __________ triangle two of its sides have equal length.

10. The angle so formed by extending one of the vertex of a triangle is ______angle.​