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p=38
l=18
L=p x l
=38 x 18
=684
Segitiga
t=22
a=38
L=1/2 . a . t
=1/2 . 38 . 22
=418
Ltotal=Lpersegipanjang + Lsegitiga
=684+418
=1.102
=pxl
=38cm x 18 cm
=636 cm2
Luas 2 =segitiga
=axt
=38 cm x 22 cm
=836 cm2
LUAS BANGUN DATAR BANGUNAN
=L1 +L2
=636 cm2 + 836 cm2
=1472 cm2