Hi pls help me with these question 1-15 it’s easy the ratios one

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.

What is 140% of 25? because i need

Which two undefined geometric terms always describe figures with no beginning or end?