Answer:
The tree is 20.6 ft tall.
Step-by-step explanation:
Please check the attached graph.
From the diagram, it is clear that John is 5 ft tall is standing 20 feet away from a tree, making an angle of elevation to be 38⁰.
The diagram makes a right-angled triangle.
- Given the angle = Ф = 38⁰
- Hypotenuse = Tree length = c  ?
Pythagorean Theorem:
For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

substituting a=5, b=20


 ft
 ft
Thus, the tree is 20.6 ft tall.
 
        
             
        
        
        
Answer: 
X= 110/7 or 15.7 or rounded to 16
 
        
                    
             
        
        
        
60
30 *2 
15 * 2 * 2
5 * 3 * 2 * 2
        
             
        
        
        
18 that question is confusing so I guessed sorry dude
        
             
        
        
        
First question: 0
Second question: 0.94