What is the area of this figure?

a. 102
b. 132
c. 168
d. 340

The answer is:  [A]:  102 cm² .

Area of a Trapezoid:  Area = (1/2) * (base 1 + base 2) * (height) ;
                                   
                                      A  =  (1/2) * (b₁ + b₂) * h ;

From the figure, "base 1" ; or "b₁" = 6 cm + 7 cm = 13 cm ;
             
                          "base 2" ; or "b₂" = 21 cm ;
 
                          "height" = 6 cm ;

     A = (1/2) * (b₁ + b₂) * h ;
        
     A = (1/2) * (13 cm + 21 cm) * 6 cm ;
      
     A = (1/2) * (34 cm) (6 cm) ;
 
     A = (17 cm) * (6 cm) = 102 cm² ; which is:

                              "Answer choice:  [A]" .