luas segitiga yg di kiri 1/2 persegi
luas segitiga yg di kanan = (1/2 sisi)² /2 = 1/8 persegi
luas diarsir = 1 persegi -1/8 -1/2 = 3/8 persegi
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luas segitiga yg di kiri 1/2 persegi
luas segitiga yg di kanan = (1/2 sisi)² /2 = 1/8 persegi
luas diarsir = 1 persegi -1/8 -1/2 = 3/8 persegi