Question 1027175
Draw it carefully. If you label the points correctly you will see that it is in fact not a right triangle.


To verify, use the slope formula to find the slope between each pair of points. You will obtain three different slopes corresponding to the three points. The triangle is a right triangle if and only if two of the slopes have a product of -1 (or if one is horizontal and the other is vertical, but that is not the case here).


Try again, and be careful.