Answer:
1.2x-1.2y
Step-by-step explanation:
It would be 6.875 i do believe
Answer: Yes, add one more each time you add
Step-by-step explanation:
Only two triangles:
The 90* angle is stable, so you can change only the position of the 50* and 40* angles.
1 triangle: 40* is right to the 90*
2 triangle: 40* is left to the 90*
Hope this helped you!