## King 4 years ago Help.......... L,M and N are midpoints on sides AB,BC,CA respectively.Area of triangle ABC is 48 units,then find area of triangle LMN......

1. anonymous

area of triangle LMN = $1/2*(64\sqrt{3}/4)*\sqrt{3}/2 = 12$

2. anonymous

3. anonymous

4. anonymous

yeah but i want the explanation as i already know the answer......

5. anonymous

The segment joining the midpoints of two sides of a triangle is parallel to the third side and half as long as the third side.

6. anonymous

yeah i know that but wat do i do ahead?..

7. anonymous

|dw:1321273278877:dw|

8. anonymous

Since they're all midpointsegments, they're all half the length of the opposing side. What would that do to your area?

9. anonymous

Original area is 1/2*A*B Area of small triangle is 1/2* 1/2A * 1/2B and that is 1/4 of the original area, get it?

10. anonymous

oh ohk thanx.......

11. anonymous

this triangle is divided into 4 equal parts so area of original triangle divided by 4