InterviewSolution
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InterviewSolution
| 1. |
(8,1),(k,-4),(2,-5)...find the value of "k". Coordinate geometry |
| Answer» First we have to put the value of area of triangle1/2[ x1 ( y2 -y3) + x2( y3 - y1) +x3 (y1 - y2) ] So, now we have put the values=1/2[8(-4+5)+k(-5-1) +2(1+4)]=1/2(8-6k+10)=1/2(18-6k) =1/2*2(9-3k) => -3k = -9=> k =3 Hence the value of k is 3 | |