Question

In parallelogram LMNO, LM=4.12, MN=4,LN=5, and OM=6.4. diagonals LN and OM intersect at point R. What is the length of OR?

a) 2
b) 2.06
c) 2.5
d) 3.2
e)12.8

Answer 1

d) 3.2

Explanation:

Answer 2

we have given
LM=4.12
MN=4
LN=5
OM=6.4
As diagonals LN and OM intersect at point R.
so we divide LN by 2
we get 5/2=2.5
now using Pythagorean theorem
OR^2= 4^2-2.5^2
OR^2=9.75
taking square root
OR=3.12
so the right answer is d) 3.2