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tinggi segitiga=17-5=12cm
panjang=5cm
lebar persegi panjang=2cm
Dit:Luas bangun=.....?
penyelesaian =
L.bangun=L.segitiga + L.persegi panjang
=¹/2.a.t + P.L
=¹/2.6.12 +5.2
=36 +10
=46cm²
maaf kalau salah