Unit 30B problems with answers from http://www.textbooksfree.org/
Need Help? Quick Notes Unit 30 Parallel Lines, Similar Triangles, and Congruent Triangles and Part 4 Review will help
Part 4 Quiz with Solutions and Parts 1-4 Cumulative Problem Review with Answers
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10) Are triangles ABC and DEF congruent? Why?
11) The sun causes a 4.5 foot mailbox to cast a 1.5 foot shadow. How tall is a flagpole which casts a 9.0 foot shadow?

12) Oak and Forest Streets are parallel and crossed by Center Street. Find the measure of: