Ola matheus
a = 10
b = 16
sen(72°) = 0.95
área
A = a*b*sen(α)/2
A = 10*16*0.95/2 = 76 cm²
pronto
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Verified answer
Ola matheus
a = 10
b = 16
sen(72°) = 0.95
área
A = a*b*sen(α)/2
A = 10*16*0.95/2 = 76 cm²
pronto