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1 bangun pertama (trapesium)
luas: jumlah sisi sejajar × TINGGI : 2
(30cm +24cm)×5 :2
= 54 cm ×2,5cm
=135 cm
2 bangun kedua (trapesium terbalik)
luas; jumlah sisi sejajar kali tinggi bagi dua
(30cm +8 cm)×6cm dibagi 2
38 cm × 3cm
=114cm
jadi seluruh luas1 +luas2 =135cm+114cm
=249cm