1. To check that whether the figure has 3 sides.
2. To check whether it has 3 angles.
3. To check whether any of the angle is 90 degrees.
4.To check whether any of the two sides are equal.
5. To check whether all the sides are equal.
6. To check whether any of the two sides squares sum is equal to other side.
7.To check whether all the sides are not equal.
8. To check the length of the triangle.
9. To check the breadth of the triangle.
10.To check the height of the triangle.
11. To check whether all the angles sum is 180 degrees.
12.To check whether any of the two angles is less than 90 degrees.
13.To check whether the triangle has three vertices.
14. To check whether the triangle is having only 3 straight lines with no overlap.
15. To check shape of the triangle.
