Step-by-step explanation:
From the Pythagorean theorem we have:
 <em>subtract b² from both sides</em>
           <em>subtract b² from both sides</em>

Same:

 
        
             
        
        
        
Answer:
around 76.16
Step-by-step explanation:
30 squared + 70 squared = 5800
square root of 5800 = 76.16 
a squared + b squared = c squared
 
        
             
        
        
        
Answer:
52 minutes i think im not sure i'm not in high school
Step-by-step explanation:
 
        
             
        
        
        
Answer:
5.5 ft
Step-by-step explanation:
because its 4ft for every 1ft there's a ratio of 1:4 so 22 represents the 4 part of the ratio, hence 22 divided by 4 gives us 5.5 on the base