Given that triangle ABC is right angle triangle. CD is altitude such that AD=BC
ABC is a right angle triangle so apply Pythogorean theorem

 (Given that AD = BC)
      (Given that AD = BC)
 (Given that AB=3)
      (Given that AB=3)
 ...(i)
 ...(i)
ADC is a right angle triangle so apply Pythogorean theorem



 ...(ii)
 ...(ii)
Plug value (ii) into (i)





Hence final answer is 
 
        
                    
             
        
        
        
Answer:
1 would be 10%, but a proportion is a ratio, as in this case 10/100 = 1/10= . 1, but 10% is not a ratio in of itself, but is a proportion of 100. % means OF one hundred. A proportion is a number TO another number.
Step-by-step explanation:
 
        
             
        
        
        
8.4 you mupitly 1.4*6 you will get this answer plz mark brainlest 
        
             
        
        
        
Answer:
the right answer is option 4