Jawabanmu

2014-05-21T10:04:38+07:00
375= 5x.3x
375= 15 x kuadrat
25=x kuadrat
5=x
panjang = 5.5= 25 cm
tinggi = 3.5= 15 cm
2014-05-21T10:19:42+07:00
L jajar genjang = a . t
375 = 5x . 3x
375 = 15x^2
x^2 = 375 / 15
x^2 = 25
x =  \sqrt{25}
x = 5

alas = 5x = 5(5) = 25 cm
tinggi = 3x = 3(5) = 15 cm