...intersect in F. Prove that the triangle BFC is equal in area to the quadrilateral ADFE. 11. Prove that the perpendiculars from the vertices of a triangle to the opposite sides meet in a point. 12. (a) Write down and simplify an expression for the numerical value of : cos [cor1...

...5+42 2(-4 + 48)-(6 + 60)-(12+10) 88-66-22 0 Therefore, the three lines are concurrent Example 14 Prove the perpendiculars from the vertices of a triangle to the opposite sides meet at a point. Ans: Without loss of generality, let us take the vertices of the triangle ABC as A(0,...

...vote and in how many ways will the votes be equally divided among the candidates ? 11 (a) Show that the perpendiculars from the vertices of a triangle to the opposite sides meet in a point. (5) If from a point within an equilateral triangle, perpendiculars are drawn to the...