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Verified answer
Luas Segitiga 1 :L = ½ × a × t
L = ½ × (4,5 + 3) × 5
L = ½ × 7,5 × 5
L = 7,5 × 2,5
L = 18,75 cm²
Luas Segitiga 2 :
L = ½ × a × t
L = ½ × 3 × 5
L = ½ × 15
L = 7,5 cm²
Luas Segitiga yang Diarsir :
L = 18,75 cm² - 7,5 cm²
L = 11,25 cm²
Maaf Kalau Salah