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Perímetro = 5x3,5cm = 17,5 cm
Altura = 7cm
A.Lateral = P.h
A.Lateral = 17,5cmx7cm = 122,5cm²
Area Base (Pentágono) A.Base =
P = 17,5 cm
apotema a = 2,41 cm
A.Base=
Area Total A.Total = A.Lateral+2 A.Base
A.Total = 122,5cm² + 2(21,09cm²)
A.Total = 122,5cm² + 42,18 cm²
A.Total = 164,68cm²