Respuesta :

Area = 1/2 × NMP angle in radian × radius^2

Area = 1/2 × ( 40pi /180 ) × 12^2

Area = 1/2 × ( 2pi / 9 ) × 144

Area = 1/2 × 144 × ( 2 × 3.14 / 9 )

Area = 72 × 0.697

Area = 50.184

Area = 50.18 cm^2

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