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l : 24 cm(6x4)
Luas : p x l
36 cm x 24 cm : 824 cm pangkat 2
Semoga benar...
Tinggi awa(1) = 9cm
Lebar awal(1) = 6 cm
Tinggi kedua(2) = 36 cm
ditanya: luas foto setelah di perbesar?
jawab:
L2 =9/36 : 6/x
=36 . 6 : 9 . x
= 216 : 9
L2 = 24
L foto setelah diperbesar = T2 xL2
= 36 x 24
= 864 cm²