Respuesta :

1244466666

Answer:

334 square mm

Step-by-step explanation:

Answer:

area of the rectangle on top:

6 x 21 = 126

area of side rectangle:

8 x 13 = 104

area of triangle below:

7 x 16 x 1/2 = 56

Now add the total of all the areas;

126 + 104 + 56 = 286 square mm