Explanation: In any triangle, the sum of any two sides MUST BE GREATER than the third side. Therefore, to decide whether the given coordinates can form a triangle or not, we will simply get the length of each side and then check the above condition.
The length can be calculated using the distance formula attached in the image.
LM = [tex] \sqrt{(-24--22)^2+(20--19)^2} [/tex] = 39.05 units MN = [tex] \sqrt{(-5--22)^2+(-7-20)^2} [/tex] = 31.906 units NL = [tex] \sqrt{(-5--24)^2+(-7--19)^2} [/tex] = 22.4722 units