Question

Tolong ya.. no 8.. pkai cara.. pliss skarang

Answer 1

AC : BD
4 : 3
L = 150 cm^2
misal AC=a=4x
         BD=b=3x
L=1/2.d1.d2
150=1/2.a.b
300=a.b
300=4x.3x
300=12x^2
x^2=25
x=5

AC=4x=4.5=20 cm
BD=3x=3.5=15 cm