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Lebar foto (l) = 6 cm
Lebar diperbesar (L) = 21 cm
Tinggi diperbesar (T) = ..?
Luas diperbesar = ..?
Jawab:
t/T = l/L
8/T = 6/21
8 . 21 = 6 . T
168 = 6T
T = 168/6
T = 28 cm
Luas = L x T = 21 x 28 = 588 cm²
6x=21.8
x=21.8/6=28
luas 21.28=588 m²