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= 1/2 × 6 × 34cm
= 3 × 34 = 102cm
Luas [] : panjang × lebar
= 34cm × 48cm
= 1.632cm
Luas ∆ + Luas []
= 102cm + 1.632cm
= 1.734cm²
Jawabannya C. 1.734cm²
Maaf kalau salah ;-;