Respuesta :

Answer:

216

Step-by-step explanation:

First find the base area

0.25 * √[(5 + 6 + 5) * (-5 + 6 + 5) * (5 - 6 + 5) * (5 + 6 - 5)] = 12

Equation:

12 * (5 + 6 + 5) + (2 * 12) = 216
26 is the answer. hope i helped

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