If XY=YZ and angle Y measures 90 degrees in the figure above, which of the following

**CANNOT**be concluded?If XY=YZ and angle Y measures 90 degrees in the figure above, which of the following **CANNOT** be concluded?

Detailed Explanation

If XY=YZ and angle Y measures 90 degrees, then the triangle XYZ is a right isosceles triangle. This means that all three sides of the triangle are congruent and that angle Y is a right angle.

Therefore, we can conclude that:

XZ is congruent to XY and YZ

a+b=90

a=b

However, we cannot conclude that XZ is less than XY.

Therefore, we can conclude that:

XZ is congruent to XY and YZ

a+b=90

a=b

However, we cannot conclude that XZ is less than XY.