Question

In the given triangle
M, N and O are the
respective mid
points of BC, CA and
AB. If AB = 60 cm,
BC = 58 cm, AC = 42
cm, then what is the
perimeter
of
quadrilateral AOMN?
​

Answer 1

Answer:

As perimeter of ΔADC= perimeter of ΔADB

Let length of AD be

′

l

′

then,

l+x+80=60+l+(100−x)

⇒20=100−2x⇒x=40cm

∴ length of BD=(100−x)=60cm