Jawabanmu

2014-06-02T21:10:47+07:00
L =  \frac{1}{2}  × (d₁ × d₂)
720 =  \frac{2x.5x}{2}
720 = 5x²
144 = x²
x = 12

diagonal pertama = 2x = 24 cm
diagonal kedua = 5x = 60 cm
itu diagonal pertama gmn cara nya sama diagonal kedua?
jelasin kk rey
ohh saya ngerti , 2x12 =24
5x12=60
ouh oke thx kk
yupp! exactly!
yes.