Name the type of triangle formed by the points A( - 5, 6), B( - 4, - 2) and C(7, 5).

By using the distance formula lets determine the length of all three sides.

Distance between the points (x1, y1) and (x2, y2);

d =


AB =

BC =

CA =

By calculating the distance between two points, now we can find out the type of triangle.

As we can see;


ΔABC also not satisfies the condition Pythagoras i.e.,

(Hypotenuse)2 = (Base)2 + (Perpendicular)2

Hence, the triangle is scalene because all of its sides are not equal i.e., different from each other.