The possible unit digit of the square root of 9988001

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Two lines parallel to the same plane are parallel to eachother

This is different from the first one can someone me