Penjelasan dengan langkah-langkah:
∆EDF = 100cm²
AGDF = 4(∆EDF)
AGDF = 4(100)
AGDF = 400 cm²
BCGF = 2(150)
BCGF = 300 cm²
ABCD = 400 + 300
= 700 cm²
L BEF
= 700-(100+150+175)
= 700-(425)
= 275 ( A )
-back2weekend
PEMBAHASAN
Bangun Datar
AE = FPB (100 , 175)
AE = 25 cm
AD = 2 AE = 50 cm
L.EAB = 175 cm²
1/2 × AE × AB = 175
AB = 14 cm
Luas ∆BEF
= L.ABCD - 3 ∆
= (50 × 14) - (100 + 175 + 150)
= 700 - 425
= 275 cm²
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Verified answer
Penjelasan dengan langkah-langkah:
∆EDF = 100cm²
AGDF = 4(∆EDF)
AGDF = 4(100)
AGDF = 400 cm²
BCGF = 2(150)
BCGF = 300 cm²
ABCD = 400 + 300
= 700 cm²
L BEF
= 700-(100+150+175)
= 700-(425)
= 275 ( A )
-back2weekend
PEMBAHASAN
Bangun Datar
AE = FPB (100 , 175)
AE = 25 cm
AD = 2 AE = 50 cm
L.EAB = 175 cm²
1/2 × AE × AB = 175
AB = 14 cm
Luas ∆BEF
= L.ABCD - 3 ∆
= (50 × 14) - (100 + 175 + 150)
= 700 - 425
= 275 cm²