Answer:
how?
Step-by-step explanation:
Answer: It's 11683.9
Step-by-step explanation:
Answer: 70 meters.
Step-by-step explanation:
Observe the figure attached.
The distance between the walls is:

<em />
Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:
- Calculate the distance AD:

- Calculate the distance AE:

Therefore the distance between the walls is:

Answer:
The first student is correct
Step-by-step explanation:
With the given information there is already 4 inches on the rectangle. 13 x2 = 26. 26+4=30. For student two if the unknown number was 10 it would not work because the longest side is 3 less then the unknown number. 10-3=7. 7x2=14. 14+4= 28<30