+0  
 
+1
97
1
avatar+74 

https://drive.google.com/file/d/10ICtLdBj8FfU8_OOiG0gC-JS8mfaFYZr/view?usp=drivesdk

 Apr 20, 2021
 #1
avatar+114060 
0

 

 

 

Hint:

 

Let distance AB be    x+3

 

Now work out an expression for the shaded region in terms of x and put it equal to 51

 

Solve for x

 

Now find the whole area.

 Apr 20, 2021

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