Triangles

3. The sum of all the angles in a triangle is equal to _____ degrees.
5. The length of the ____ is the height of the triangle.
6. __ triangles must have the same shape but can be a different size.
8. In a 45-45-90 degree triangle, the two legs are _____ to each other.
10. When you extend one side of a triangle you create an __ angle.
11. The segment connecting the vertex of a triangle to the midpoint of its opposite side is a _____.

1. The name given to matching parts of congruent triangles.
2. In a right triangle, the side opposite the right angle is called the _____.
4. A triangle with two congruent sides.
7. The mathematical study of triangles is _____.
8. The _____ Theorem states the sum of the squares of the lengths of the legs equals the square of the length of the hypotenuse
9. An __ triangle has three angles that are less than 90 degrees.