1. How many edges does triangle have?
2. What is the name of triangle with equal vertices?
3. Which is longest side of a triangle?
4. Which is triangle which has 90° angle?
5. What is the sum of all angles of triangle?
6. Which ancient Greek philosopher studied triangles?
7. What is a triangle with all three sides of different lengths called?
8. What is a triangle called if all its angle are acute angles?
9. Complete this right angle equation: a^2+b^2=?
10. What's the name of the type of maths that studies the sides and angles of triangle?