GIVEN : Let ABC be a triangle
whose median intersect side BC
and E is the mid- point
TO PROVE :area ( BED ) = 1/4 area ( ABC )
PROOF : Join BE
We know that median divides the triangle into two triangles of equal areas ,
= AD is the median of Triangle ABC
So, area ( ABD ) = area ( ACD ) = 1/2 area ( ABC ) ----------- ( 1 )
As E is the mid point , i.e : BE is the median of triangle ABD ,
similarly , area ( BED) = area ( AEB )
or , area ( BED) = 1/2 area ( ABD )
Now , putting the value of area ( ABD ) from (1 ) ,
= area ( BED)= 1/2 [ 1/2 area ( ABC ) ]
= area (BED) = 1/2 * 1/2 area ( ABC )
= area ( BED ) = 1/4 area ( ABC)