How do you calculate the value of a line?

Question

zzr0ck3r · Answer

what do you mean? 
A line is a set if points, it has no value.

mw647 · Answer

This is what I am trying to do

anonymous · Answer

we cant answer. its not a clear question ..

anonymous · Answer

You can find the equation of a line from a set of points on the line.

anonymous · Answer

oh .. length of line segment AN

mw647 · Answer

Yes and I also have to calculate ZN and CB

anonymous · Answer

Bust out your trig skills.

mw647 · Answer

But I haven't taken trig yet!

anonymous · Answer

= $$\frac{ 3 }{ 2 } \times 9 = 13.5$$

anonymous · Answer

because centroid divides medians in the ratio of 2:1

anonymous · Answer

Oh!  Hmm.  Well this probably involves understanding the relationship of lines leading to the centroid.  Informally, the centroid of a 2D object is the point the object would balance on if placed on the tip of a pencil, or something similar.

anonymous · Answer

So that gives you an informal answer to half of question B.

anonymous · Answer

I'm rusty on these geometry problems (you do less and less of them as you advance in mathematics in normal curriculum...) so bye, and I think @crazysingh has it.

mw647 · Answer

Haha thank you for your help @mathbrz

anonymous · Answer

solution no :A  -- > centroid z divides line segments AN, BO, CM in the ratio of 2:1

anonymous · Answer

z is centroid means it is intersection points of all the medians from all the vertices on the opposite sides of a triangle.

mw647 · Answer

@crazysingh Okay I see what you are saying

anonymous · Answer

http://www.mathwarehouse.com/geometry/triangles/triangle-concurrency-points/centroid-of-triangle.php

mw647 · Answer

@crazysingh So I understand where your 3/2 came from, how did you get the 9?

anonymous · Answer

https://en.wikipedia.org/wiki/Centroid For myself and you, @mw647

mw647 · Answer

http://www.virtualnerd.com/geometry/triangle-relationships/medians-altitudes/centroid-find-segment-lengths Just for reference this was very helpful too

anonymous · Answer

@mw647 AZ=9 is given in the question. isn't it?

mw647 · Answer

@crazysingh I see now, sorry!! 1 am is too late for me to think straight lol.

mw647 · Answer

@crazysingh so if I'm doing this right d is 8.25?