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4x8 = 32
6x8 = 48
jadi ukuran foto sekarang 32x48
b. kalau keliling sebelum diperbesar
2(4+6)
= 8+12
=20 cm
kalau setelah diperbesar
2(32+48)
=64+96
=160cm
semoga membantu:)
L= 6×8= 48cm
b. Kpersegi= P+L+P+L
=4+6+4+6
=20cm
keliling setelah diperbesar= 32+48+32+48
=160cm