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= 4y x 3y
= 192 cm2
4y x 3y = 192 cm2
12 y2 = 192 cm2
y2 = 16 cm2
y = √16 cm2
= 4cm
alas = 4y
= 4x4cm
= 16cm
tinggi = 3y
= 3x4cm
=12cm
= 1/2 ( 4y + 4y ) x 3y = 192
= 1/2 x 8y x 3y = 192
= 4y x 3y = 192
= 12y² = 192
= y² = 192/12
= y² = 16
= y = √16 = 4
a = 4y
= 4 x 4
= 16 cm
t = 3y
= 3 x 4
= 12 cm