Concurrent lines

In the adjoining figure (a) Name (i) Parallel lines (ii) all pairs of intersecting lines. (iii) concurrent lines. ( b) State whether true of false. (i) points A,B and D are collinear. (ii) lines AB and ED intersects at C .

Lines p ,\ q\ a n d\ r are concurrent. Also, lines p ,\ r\ a n d\ s are concurrent. Draw a figure and state whether lines p ,\ q ,\ r\ a n d\ s are concurrent or not.

Lines p ,\ q\ a n d\ r are concurrent. Also lines p ,\ s\ a n d\ t are concurrent. Is always true that the lines q ,\ r\ a n d\ s will be concurrent? Is it always true for lines q ,\ r\ a n d\ t ?

Prove that the following lines are concurrent also find the point of concurrency. 3x-4y+5=0 " ...(1)" 7x-8y+5=0 " ...(2)" " "4x+5y=45 " ...(3)"

Assertion: Number of triangles formed by n concurrent lines and a line which is parallel to one of the n concurrent lines is "^(n-1)C_2. Reason: One and only one triangle is formed by three lines out of which 2 are concurrent and third line is not passing through the point of intersection of the concurrent lines and not parallel to any of the concurrent lines. (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not the correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

Concurrency of lines|Foot Of Perpendicular And Image Of A Point w.r.t. A Line

(1) Let's draw 6 concurrent straight line and name them.

Lines p,q and r are concurrent.Also lines p, s and t are concurrent.Is always true that the lines q,r and s will be concurrent? Is it always true for lines q,r and t?

Lines p,q and r are concurrent.Also,lines p,r and s are concurrent.Draw a figure and state whether lines p,q,r and s are concurrent or not.