Jawaban:
Diketahui,
volume = 22.680 cm³
panjang : lebar : tinggi = 5 : 12 : 14
Ditanya, panjang diagonal bidang pada sisi tutup balok?
Dijawab,
V = p l t
22.680 = 5x (12x) 14x
22.680 = 840x³
x³ = 22.680/840
x³ = 27
x = ³√27
x = 3
p = 5 x 3 = 15 cm
l = 12 x 3 = 36 cm
t = 14 x 3 = 42 cm
diagonal bidang =
√(p² + l²)
√(15² + 36²)
√(225 + 1296)
√1521
= 39 cm.
Jawaban dengan penjelasan:
39 cm
misalkan,
p = 5a
l = 12a
t = 14a
VBalok = p x l x t
22.680 = 5a x 12a x 14a
22.680 = 840a³
22.680/840 = a³
27 = a³
√27 = a
3 = a
p = 5a = 5 x 3 = 15 cm
l = 12a = 12 x 3 = 36 cm
t = 14a = 14 x 3 = 42 cm
Panjang Diagonal Bidang Sisi Tutup
√(15²+36²)
= √(225+1.296)
= √1.521
= 39 cm
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Verified answer
Jawaban:
Diketahui,
volume = 22.680 cm³
panjang : lebar : tinggi = 5 : 12 : 14
Ditanya, panjang diagonal bidang pada sisi tutup balok?
Dijawab,
V = p l t
22.680 = 5x (12x) 14x
22.680 = 840x³
x³ = 22.680/840
x³ = 27
x = ³√27
x = 3
p = 5 x 3 = 15 cm
l = 12 x 3 = 36 cm
t = 14 x 3 = 42 cm
diagonal bidang =
√(p² + l²)
√(15² + 36²)
√(225 + 1296)
√1521
= 39 cm.
Jawaban dengan penjelasan:
39 cm
misalkan,
p = 5a
l = 12a
t = 14a
VBalok = p x l x t
22.680 = 5a x 12a x 14a
22.680 = 840a³
22.680/840 = a³
27 = a³
√27 = a
3 = a
p = 5a = 5 x 3 = 15 cm
l = 12a = 12 x 3 = 36 cm
t = 14a = 14 x 3 = 42 cm
Panjang Diagonal Bidang Sisi Tutup
√(15²+36²)
= √(225+1.296)
= √1.521
= 39 cm