Find the area of a triangle whose vertices are (1,-1) ,(-4, 6) and (-3, -5).

Find the area of the triangle whose vertices are (3,8),(-4,2) and (5,1)

Find the area of the triangle whose vertices are : (1) (2,3), (-1, 0), (2,-4) (2) (-5, -1),(3,-5), (5,2)

Find the centroid and incentre of the triangle whose vertices are (1, 2), (2, 3) and (3, 4).

If the area of the triangle formed by the points (2a,b), (a+b, 2b+a) and (2b, 2a) be Delta_(1) and the area of the triangle whose vertices are (a+b, a-b), (3b-a, b+3a) and (3a-b, 3b-a) be Delta_(2) , then the value of Delta_(2)//Delta_(1) is

Find the area of the triangle vertices are (0, 0), (3, 0) and (0, 2)

Find the circumcentre of the triangle whose vertices are (-2, -3), (-1, 0) and (7, -6). Also find the radius of the circumcircle.

Find the centroid of the triangle whose vertices are (3, -5), (-7, 4) and (10, -2).

Find the circumcentre of the triangle whose vertices are (2, 2), (4, 2) and (0, 4).

Find the incentre of the triangle ,whose vertices are (3,0),(0,4)and(0,0).