The answer is: [A]: 102 cm² .
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Area of a Trapezoid: Area = (1/2) (base 1 + base 2) (height) ;
A = (1/2) (b₁ + b₂) h ;
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From the figure, "base 1" ; or "b₁" = 6 cm + 7 cm = 13 cm ;
"base 2" ; or "b₂" = 21 cm ;
"height" = 6 cm ;
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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:
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"Answer choice: [A]" .
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