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Luas persegi = 10 x 10 = 100 cm²
Luas trapesium I = (10 + 5) /2 x 5 = 37,5
Luas trapesium II = (10 + 5) /2 x 5 = 37,5
Luas yang diarsir = luas trapesium I + luas trapesium II
= 37,5 + 37,5
= 75 cm²
Jika jawaban cukup membantu .. boleh dong minta bintangnya ? :)