L = 1/2.2X.3X
75 = 1/2.2X.3X
75.2 = 6X
150 = 6X
X = 150 : 6
X = 25
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75 = 1/2 6x^2
150 = 6x^2
x^2 = 25
x = 5
maka alas = 2x = 10
tinggi = 3x = 15
L = 1/2.2X.3X
75 = 1/2.2X.3X
75.2 = 6X
150 = 6X
X = 150 : 6
X = 25