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Panjang alas segitiga = 18 cm - 16 cm = 2 cm
Luas bangun 1 ( Persegi Panjang ) = 16 cm × 11 cm = 176 cm persegi.
Luas bangun 2 ( Segitiga ) = 1/2 × 11 cm × 2 cm
= 11 cm persegi
Luas total = L. bangun 1 + L. bangun 2 = 176 cm persegi + 11 cm persegi = 187 cm persegi
semoga mmbantu