Heuristic Problem solving in Mathematics (Activity 1)

Problem
Two men facing a tall building notice the angle of elevation to the top of the building to be 30^o and 60^o respectively. If the height of the building is known to be 
h =120 m, find the distance (in meters) between the two men.

Heuristic Problem Solving
Stage 1
Question any assumptions
Key in your assumption/s in the linoit individually.

Questions surfaced from Stage 1:

Stage 2

Solve the Problem Individually (my perspective)

Once your assumptions and hypothesis have been clarified, start working on the problem individually. No discussion with anyone for this stage.
Added Scenario:
You are the Civil and Structural Engineer and the 2 men are the land surveyors from a Company. You have to pit your skills and knowledge with engineers from other companies. 

Stage 3

Collaboration - seeking multiple perspectives

In the big group of 5-6 students, present and discuss your solution with the group. 

Focus on the assumptions/hypothesis, Process and the validity of the final solution(s).

Post your Group's solution as a New Post with the following criteria:

Post Title: Heuristic Solution (Group number)

Present the following:

- Assumptions Made

- Process (how you solved the problem) - what method/approach you used eg diagrams, on-line resources

- Final Solution

Stage 4

Peer Assessment

Review the solution(s) from other groups. 

To facilitate process, follow the following:

Group 1 to comment on Group 2

Group 2 to comment on Group 3

Group 3 to comment on Group 4

Group 4 to comment on Group 1

Stage 5

Self Assessment

Review the comments made by the other group.

Be prepared to defend or justify your POV.

However, if an error has been committed - learn from it.

So ... what is there a FINAL solution that all the engineers could agree upon? Justify your answer.