How many 18" square tiles are needed to pave the door of a patio that measures
18 by 15

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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.