Answer:
It is a right triangle.
Step-by-step explanation:
If the distances between the points fit the Pythogoras theorem then it is a right angled triangle.
Distance between first 2 points = sqrt((6-2^2 + 0^2) = sqrt 16 = 4
Distance between next 2 points = sqrt((7-4)^2 + 0^2) = sqrt 9 = 3
Distance between (6.7) and (2, 4) = sqrt((7-4)^2 + (6-2)^2) = sqrt 25 = 5.
5^2 = 4^2 + 3^2
So it is right angled.
