In a concert hall, 250 seats out of 300 seats were occupied. To the nearest thousandth, what part of the hall was not occupied?

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Need solving this second acceleration problem.

What is an alternate exterior angle