L Persegi panjang
= p × l
= 25 × 18
= 450 cm²
L trapesium
= ½ × (a+b) × t
= ½ × ( 35 + 25) × (30-18)
= ½ × 60 × 12
= 360 cm²
Jadi, luas bangun datarnya adalah
450 + 360
= 810 cm²
Maaf kalau salah
Dik:
Pesegi Panjang :
p = 25 cm
l = 18 cm
Trapesium:
Sisi A = 35 cm
Sisi B = 25 cm
t = 30 - 18
= 12 cm
Dit:
Luas Gabungan?
Jawab:
Lp = p × l
= 25 × 18 cm
Lt = 1/2 × Jumlah panjang sisi sejajar × t
= 1/2 × (35 + 25) × 12 cm
= 1/2 × 60 × 12 cm
= 1/2 × 720 cm
Maka:
450 + 360 cm²
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L Persegi panjang
= p × l
= 25 × 18
= 450 cm²
L trapesium
= ½ × (a+b) × t
= ½ × ( 35 + 25) × (30-18)
= ½ × 60 × 12
= 360 cm²
Jadi, luas bangun datarnya adalah
450 + 360
= 810 cm²
Maaf kalau salah
Bangun Datar
Dik:
Pesegi Panjang :
p = 25 cm
l = 18 cm
Trapesium:
Sisi A = 35 cm
Sisi B = 25 cm
t = 30 - 18
= 12 cm
Dit:
Luas Gabungan?
Jawab:
Lp = p × l
= 25 × 18 cm
= 450 cm²
Lt = 1/2 × Jumlah panjang sisi sejajar × t
= 1/2 × (35 + 25) × 12 cm
= 1/2 × 60 × 12 cm
= 1/2 × 720 cm
= 360 cm²
Maka:
450 + 360 cm²
= 810 cm²