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sisi kiri = sisi kanan
sisi kiri + sisi kanan = 20m²
sisi depan =
= 3m²
sisi belakang = sisi depan
depan + belakang = 6m²
depan, kiri, kanan, belakang = 26m²
l kain = 4 m
p kain = (2\/ 1,5^2+2^2) × 2
. = (2\/ 2,25 + 4) × 2
. = (2\/ 6,25) × 2
. = 2,5 × 2
. = 5 m
Ditanya
L kain = ....
Jawab
L kain = p × l
. = 4 × 5
. = 20 m
jadi luas kain minimal penutup tenda 20 m
keterangan
2\/ = akar pangkat 2
^ = pangkat
maaf jika salah