.21 is decimal form, 21/100 is the fraction in simplest form.
        
                    
             
        
        
        
Answer:
Ele não distribuiu corretamente
Step-by-step explanation:
 
        
             
        
        
        
The length of the hypothenuse or the value of x is equal to 19.53
Data;
- hypothenuse = x
- adjacent = 11.2
- opposite = 16
<h3>Pythagoras's Theorem</h3>
To solve this problem, we have to use Pythagoras's theorem which is used to find the missing side in a right angle triangle if we have at least two sides.
The formula for this is 

Let's substitute the values and solve for the missing side

The length of the hypothenuse or the value of x is equal to 19.53
Learn more Pythagoras theorem here;
brainly.com/question/3317136
 
        
             
        
        
        
88 degrees is the correct answer
        
                    
             
        
        
        
Answer:
x=4
Step-by-step explanation: