Answer:
34 Units
Step-by-step explanation:
Edit: typo
Edit 2 : Decided to give an explanation :
Truthfully, this question can be made extremely easy by noticing that it is just 2 triangles placed side by side (the inner corners)
Create a normal rectangle with the 2 triangles and identify the perimeter.
the third one 10 cm, 9cm 9cm
Please see attached picture for full solution.
x = 30
- 2x + 10 + 4x = 70, that is
2x + 10 = 70 ( subtract 10 from both sides )
2x = 60 ( divide both sides by 2 )
