Question

if the area of a triangle formed by the point(k,2k),(-2,6)&(3,1) is 20 square units then find k.​

Answer 1

Answer:

k=4

Step-by-step explanation:

area=1/2((x1-x2)(y1-y3)-((x1-x3)(y1-y2))

(k+2)(2k-1)-((k-3)(2k-6)=20*2

k=4