Question

D and e are respectively the point on the sides ab and ac of abc such that ab = 5.6 ad=1.4 ac =7.2 and ae=1.8 show that de || bc

Answer 1

Answer:

if ad/ab equal to ae/ac

lines will be parallel

now,

1.4/5.6 equal to 1/4

1.8/7.2 equal to 1/4

now proportion is same so lines are parallel