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Luas segitiga = 1/2 × a × t = 1/2 × 18 × 77 = 693 cm^2
Luas bangun gabungan = 270+693 = 963 cm^2
N.B=( ^2 ) artinya pangkat dua.
Semoga membantu ~
= 15×18 = 270
Lsegitiga = 1/2 × a × t
= 1/2 × 18 × 77
= 9 × 77
= 693
L total = Lpersegipanjang + L segitiga
= 270 + 693
= 963 cm