Question

find the centre of the circle paying through the points(6,-6),(3,-7)&(3,-3).Also, find the area of the triangle formed by these points.

Answer 1

area of triangle =1/2 ( 6(-7+3) + 3(-3+6) + 3(-6+7))
1/2 (6(-4) + 3(3) + 3(1)))

1/2 (-24 +9+3)

1/2 (-12)

area of triangle =6cm