Respuesta :

I can do #12

18+10=28
28 x 6= 168
168 divided by 2= 84
84
That was the trapezoid ^

Then 18x12=216

216
+84
——
You add them up
That's your answer
Your welcome!
for 6, multiply the 2 dimensions together , for 8 you have to multiply every number together, I do not know 10 but for 12 you have to multiply the length times width times height to get the answer

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