If `AB, BC, CA` are three sides of triangle `ABC` having length `10,7,8` respectively then the projection of sides `AB` on `BC` is

If the middle points of the sides BC,CA and AB of triangle ABC are (1,3),(5,7) and (-5,7), respectively,then find the equation of the side AB.

If the middle points of the sides BC,CA, and AB of triangle ABC are (1,3),(5,7), and (-5,7), respec-tively,then find the equation of the side AB.

The midpoints of the sides BC, CA and AB of a triangle ABC are D(2,1), E(-5,7)and F-5, -5) respectively. Find the equations of the sides of triangle ABC .

Forces proportional to AB, BC & 2 CA act along the sides of triangle ABC in order, their resultant represented in magnitude and direction as:

If the lengths of the sides AB, BC and CA of a triangle ABC are 10 cm, 8 cm and 6 cm respectively and if M is the mid-point of BC and MN || AB to cut AC at N, then the area of the trapezium ABMN is equal to

If the lengths of the sides AB, BC and CA of a triangle ABC Are 10 cm. 8 cm and 6cm respectively and if M is the mid point of BC and MN || AB to Cut AC at N, then the area or the trepezium ABMN is equal to