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Verified answer
Luas 1 (segitiga) = ½ × alas × tinggi= ½ × 35 × 20
= 350cm²
luas 2 (persegi panjang) = panjang × lebar
= 20 × 15
= 300cm²
luas 3(persegi panjang besar) = panjang × lebar
= 50 × 30
= 1.500cm²
luas gabungan = 350 + 300 + 1500 = 2.150cm²
jawaban C