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luas persegipanjang pertama
=p×l
=38×35
=1330cm²
luas persegipanjang kedua
=p×l
=47×15
=705cm²
jadi, 1330+705=2035cm²
7.
luas trapesium
=½×(jumlah sisi alas)×t
=½×(70+35)×32
=½×(105)×32
=½×3360
=1680cm²
jadi, 1680×2=3360cm²
8.
luas persegi
=s²
=36²
=1296cm²
luas segitiga
=½×a×t
=½×64×24
=½×1536
=768cm²
jadi, 1296+768=2064cm²
9.
luas persegi
=s²
=26²
=676cm²
luas segitiga
=½×a×t
=½×44×56
=½×2464
=1232cm²
jadi, 676+1232=1908cm²
10.
luas persegipanjang
=p×l
=65×18
=1170cm²
luas segitiga
=½×a×t
=½×34×49
=½×1666
=833cm²
jadi, 1170+833=2003cm²
maaf kalo sala