Respuesta :

20*16=320/2=160
 
their is not enough info for the other ones
The area of the parallelogram= length x width= 20 x 16=320 sq. in.

the area of the top triangle = 1/2 x bh=1/2 (20)(8)=80 sq. in.

together the areas total:  320+80= 400 sq. in.

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