1. What is the third angle for the triangle where angle1 = 45° and angle2 = 45°?
2. If a triangle has an angle of 90 degrees, what is it called?
3. What is the name of a triangle with equal vertices?
4. What is the name of the triangle with no equal sides?
5. Which ancient Greek philosopher studied triangles?
6. A triangle can have ______.
7. What is an "Acute" Angle?