luas trapesium = ....?
DIK :
- A1 = 15 CM
- A2 = 12 CM
- T. TRAPESIUM = 10 CM
DIT :
LUAS !
JAWAB :
L = 1/2 . ( A1 + A2 ) . T. TRAPESIUM
= 1/2 . ( 15 CM + 12 CM ) . 10 CM
= 1/2 . 17 CM . 10 CM
= 1/2 . 170 CM
= 1 . 85 CM
= 85 CM
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