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L= (14+22) x 1/2 x I2
luas trapesium = 1/2 x (a+b) x t
= 1/2 x (14 + 22) x 12
= 6 x 36
= 216 cm²
5.>>>
luas layang - layang = 1/2 x d1 x d2
= 1/2 x 16 x 24
= 16 x 12
= 192 cm²
semoga membantu ^_^