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luas trapesium
=½×(jumlah sisi sejajar)×t
=½×(35+70)×32
=½×105×32
=½×3356
=1678×2
=3356cm²
jadi luas nya 3356cm²
8.
luas persegi
=s²
=36×36
=1296cm²
luas segitiga
=½×a×t
=½×64×24
=½×1536
=768cm²
jadi, 1296+768=2064cm²
9.
luas persegi
=s²
=26×26
=676cm²
luas segitiga
=½×a×t
=½×44×56
=½×2464
=1232cm²
jadi, 676+1232=1908cm²
10.
luas persegipanjang
=p×l
=65×16
=1040
luas segitiga
=½×a×t
=½×18×34
=½×612
=306
jadi, 1040+306=1346cm²
maaf kalo sala