In figure 1, ΔMNO is a right triangle. The sum of the areas of the squares corresponding to the two shorter sides is equal to the area of the square corresponding to the third side.

In figure 2, ΔSTU is an acute triangle. The sum of the areas of the squares corresponding to the two shorter sides is not equal to the area of the square corresponding to the third side.

Select all the triangles that are as right triangles.

ΔMNO