Question

Explain why angle Y cannot be a right angle​

Answer 1

angle Y is not the largest angle

Explanation:

In a triangle, the longest side is opposite the largest angle. In a right triangle, the right angle is the largest angle.

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analysis

The side labeled 5x+1 is opposite angle Y. The side labeled 5x+2 will always be longer, meaning that angle Y is never the largest angle in the triangle.

Since angle Y is not the largest, it cannot be a right angle.