This shape is called a . 12. Its has equal side. 13. It has equal angles. 14. It has symmetry.

Here are the completed sentences for the shapes:

First Shape (Isosceles Triangle): 11. This shape is called an Isosceles Triangle. 12. Its has 2 equal side. 13. It has 2 equal angles. 14. It has 1 symmetry.

Second Shape (Equilateral Triangle): 15. This shape is called an Equilateral Triangle. 16. Its has 3 equal side. 17. It has 3 equal angles. 18. It has 3 line of symmetry.