Find the coordinates of the in centre and centroid of the triangle whose sides have the equations `3x-4y=0,12 y+5x=0 and y-15=0.`

Explanation

3x=4y

3x=4*15

x=20

x=-36

A(0,0),B(20,15).C(-36,15)

Centroid`=((0+20+(-36))/3,(0+15+15)/3)`

`=(-16/3,10)`

`a=sqrt((20+36)^2+0^2)=sqrt((56)^2)=56`

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