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= 8.8 + 1/2 . 5 . 32
64 + 80
= 144
a = √3²+4²
a = √9+16
a = √25
a = 5
L. segitiga = 1/2 . a . t
= 1/2 . 8 . 5
= 4 . 5
= 20 cm²
Lp = L. alas + 4 L.segitiga
Lp = 8 cm² + 4 . 20 cm²
Lp = 88 cm²