You discussed this lesson today in pairs while Mr. Gordon circulated to answer questions:
If you were absent, you can review this version that has the examples from the lesson mostly filled in:
Similar and Congruent Figures - PARTIALLY FILLED IN
NOTE
If you are curious about a more rigorous proof of the five triangle conditions we discussed in class, please review the links below:
IMPORTANT
SAS is taken as a postulate — it cannot be proved without the non-trivial superposition principle that Euclid used in Proposition 4.
Opportunity to Learn
Complete the opportunity to learn that begins on page 8 of today’s lesson.
TIP
Solutions will be shared in our next class after homework completion (or at least attempts) have been checked by Mr. Gordon to assess learning skills.
NOTE
All students completed or attempted homework questions. 🚀
Therefore, full solutions are now available here – see pages 8 and 9: