di mohon bantuannya nomor 15

Materi : Dinamika
Kelas : XI

titik berat.

x1=3
x2=6
y1=5
y2=3
L1x=6
L2x=4
L1y=10
L2y=6

x=x1L1+x2L2/L1+L2
x=3.6+6.4/6+4
x=18+24/10
x=40/4
x=10

y=y1L1+y2L2/L1+L2
y=5.10+3.6/10+6
y=50+18/16
y=68/16
y=4,25

Koordinat = (10, 4,25)