Answer:
Im not gonna explain i will give you the answer that i came up with I currently have 60 right now hope this is right 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x not given
therefore no answer for x
 
        
             
        
        
        
Answer:
HL
Step-by-step explanation:
Since both triangles are right angle triangles that means one angle is 90°. other two sides are given congruent .
that means lengths of hypotenuse and the leg of the one right angle triangle is equal to the corresponding other hypotenuse and leg of other triangle. 
This fulfills the condition of HL congruency.
 
        
             
        
        
        
Answer:
16. 
17. 
18. 
19. 
Step-by-step explanation:
Equation is  where k is a constant of proportionality.
 where k is a constant of proportionality.
16.

So, equation is 
17.

Equation is 
18.

Equation is 
19.

Equation is 
 
        
             
        
        
        
The area of a circular sector is <span>. </span>
<span>==> </span> 
<span>Since r = s/2, it follows that </span><span>, or </span><span>, or </span>
<span>.
</span>