Jawabanmu

2014-04-01T21:08:07+07:00
L = 1/2 2x * 3x
75 = 1/2 6x^2
150 = 6x^2
x^2 = 25
x = 5

maka alas = 2x = 10
tinggi = 3x = 15
2014-04-01T21:17:42+07:00


L = 1/2.2X.3X

75 = 1/2.2X.3X

75.2 = 6X

150 = 6X

X = 150 : 6

X = 25