# The ordinate of incentre of the triangle formed by lines 3x+4y=0 and 5x-12y=0 and y=15 is ? Plz tell which formula has to be applied... Options are: (A) 3 (B) 6 (C)8  (D) 12

Dear student

By solving the equation of the 3 sides of triangle simultaneously, we get three vertices of triangle.

Hence, the coordinate of vertices of triangle are (0,0) , (-20,15) and (36,15)

Hence, option C is correct.

Regards

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