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Verified answer
BE = 12 cmFG = 8 cm
BG = 4 cm
AB = 8 cm
untuk mempermudah dan mempercepat gunakan skala dari :
BG : AB = 4 : 8 = 1 : 2 (pembesaran 2 kali)
maka :
BC = 2 × BE
BC = 2 × 12
BC = 24 cm
AD = 2 × FG
AD = 2 × 8
AD = 16 cm
L trapesium ABCD
= 1/2 × (BC + AD) × AB
= 1/2 × (24 + 16) × 8
= 1/2 × 40 × 8
= 160 cm^2
Jadi luas trapesium ABCD adalah 160 cm^2 (B)