jangan lupa caranya yaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

bagun I (persegi) = s×s
7×7 = 49
bngun II (trapesium) = 1/2 × (a+b) × t
1/2×(7×12)×8 = 76
bagun I + bangun II
= 49+76 = 125
(mencari tinggi trapesium = 15-7 karena 7 sisi persegi = 8 tinggi trapesium = 8)

MAAF KALAU SALAH