Complete Question 
The complete question is shown on the first uploaded image 
Answer:
The value of  
The value of  
Step-by-step explanation:
Generally the total angle that make up a circle is 
       
From the diagram we see that 
     
 =>    
        
Generally angle that is formed as a result of interception of a chord and a tangent is equal to the intercepted arc divided by 2
  This implies that 
            
substituting values 
           
           
 
        
             
        
        
        
Answer:
Im pretty sure A
Step-by-step explanation:
multiply both sides by 3/4 (reciprocal)
3/4X=pie(r)cubed
divide by pi on both sides
3/4X
-------- = r(cubed)
pi
 cube root both sides
 
        
             
        
        
        
Answer:
c
Step-by-step explanation:
I don't trust myself so I am sorry if it is wrong
 
        
                    
             
        
        
        
Answer:
In quadrilateral ABCD we have
 AC = AD
 and AB being the bisector of ∠A.
 Now, in ΔABC and ΔABD,
 AC = AD
[Given]
 AB = AB
[Common]
∠CAB = ∠DAB [∴ AB bisects ∠CAD]
 ∴ Using SAS criteria, we have
 ΔABC ≌ ΔABD.
 ∴ Corresponding parts of congruent triangles (c.p.c.t) are equal.
 ∴ BC = BD.
 
        
             
        
        
        
Answer:
2x + 8x
10x
Step-by-step explanation:
Open the brackets and multiply x inside.