luas trapesium = (a+b)t /2
=(7 + 12) ×5 /2
=19 ×5 /2
=47.5 cm2
-------------------------------
luas asli = 10 ×14 = 140
luas yang dipotong = 8 × 6= 48
Luas = 140-48= 92 cm2
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luas trapesium = (a+b)t /2
=(7 + 12) ×5 /2
=19 ×5 /2
=47.5 cm2
-------------------------------
luas asli = 10 ×14 = 140
luas yang dipotong = 8 × 6= 48
Luas = 140-48= 92 cm2