Penjelasan dengan langkah-langkah:
k = 62 cm
L = 198 cm²
k = 2(p + l)
62 = 2p + 2l
L = p x l
198 = p x l
p = 198/l
2p + 2l = 62
2(198/l) + 2l = 62
396/l + 2l = 62
396 + 2l² = 62l
2l² - 62l + 396 = 0
(2l - 18)(l - 22) = 0
l = 9 atau l = 22
ambil salah satu, misal l = 9, maka
k = 2p + 2l
62 = 2(9) + 2p
2p = 62 - 18
2p = 44
p = 22 m
panjang = 22 m
lebar = 9 m
ps. disini terdapat 2 kemungkinan panjang dn lebar, tergantung prespektifnya. jika l = 9 m, maka p nya 22 m. namun jika l = 22 m, maka p nya 9 m
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Verified answer
Penjelasan dengan langkah-langkah:
k = 62 cm
L = 198 cm²
k = 2(p + l)
62 = 2p + 2l
L = p x l
198 = p x l
p = 198/l
2p + 2l = 62
2(198/l) + 2l = 62
396/l + 2l = 62
396 + 2l² = 62l
2l² - 62l + 396 = 0
(2l - 18)(l - 22) = 0
l = 9 atau l = 22
ambil salah satu, misal l = 9, maka
k = 2p + 2l
62 = 2(9) + 2p
2p = 62 - 18
2p = 44
p = 22 m
panjang = 22 m
lebar = 9 m
ps. disini terdapat 2 kemungkinan panjang dn lebar, tergantung prespektifnya. jika l = 9 m, maka p nya 22 m. namun jika l = 22 m, maka p nya 9 m