Question

draw A line segment 12.8cm and divided it in the ratio 3:5​

Answer 1

Let 3:5 be 3x and 5x
3x+5x=12.8cm
8x=12.8cm
x=12.8 /8
x=1.6
Now 3x=3×1.6=4.8cm
5x=5×1.6=8cm

Answer 2

I hope it helps you