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skala 1:150
a = 15 cm x 150= 2250 cm
b= 12 cm x 150 = 1800 cm
t= 8 cm x 150= 1200 cm
jawab
L trapesium = 1/2 x (a+b) x t
L= 1/2 x (2250+1800) x 1200
L=2430 000 cm^2
L=243 m^2