Respuesta :

petunialos

Answer:

20 cm

Step-by-step explanation:

Assuming that the side lengths you've written are the only side lengths of the shape, meaning it would be a trapezoid, all you do is add them up together.

3 + 5 + 5 + 7 = 20

gavinroddy92
20cm due to if it is perimeter then you add the total of all sides so 3+5+5+7=20

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