[PPT] for Similarity and CongruencePresentation Transcript
Our Rules“Math : Easy… Easy.. Easy.. ““Math : We Love It ““Hiii.. : Yoo.. ““Clapping hand”
What We’ve learned ?In the last meeting we’ve learned about Shapesdid you still remember it ?Watch this video!
Today…..!• We would like to talk about “Similarity and Congruency”• What will you get after study this material ?• What is our goal today ?
SimilarityWhat is palembang traditional food ?
Tell me the things in this class that look likesimilar to the shapes ?…. … ……. … ……. … ……. … ……. … …
Get the paper Instructions• Cut the brown paper into 2 parts• Cut the part into 2 parts too• Compare with the bwrown big paper, is that look similar ?• How about the figure of the parts paper each other, still look similar ? Which one has same figure and shape ?
Match the figureWhich one is similar and congruent ?
Questions1. What is similarity ?2. What is congruency ?3. What is requirements of similarity ?4. What is requirements of congruency ?
The answers are…1. Two geometrical objects are called similar if they both have the same shape2. Two figures or objects are congruent if they have the same shape and size3. Corresponding sides of similar polygons are in proportion, and corresponding angles of similar polygons have the same measure.4. When object can be repositioned and reflected