- Whatis the scalefactorfrom Triangle1 to Triangle2?
- Why do wenotstudyan ASA similaritypostulate?
Use the chartbelowfor exercises4-9.
Must and be similar?
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11.Hands-OnActivity
Materials:Ruler/straightedge,compass,protractor, graphor plainpaper.
Directions:Work with a partnerin this activity. Eachpartnerwill use toolsto drawa triangle.
Eachpartnercan workon a sheetof graphpaperor on plainpaper. Makedrawingsas accurateas possible.
Notethat it doesn’tmatterwhatunit of lengthyou use.
Partner1: Draw with , = , and
Partner2: Draw with , = , and.
A. Are sides , , , and proportional?Partner1: Measurethe otheranglesof your triangle.
Partner2: Measurethe otheranglesof your triangle.
Partners1 and 2: Compareyour results.
B. Are the otheranglesof the two triangles(approximately)congruent?C. Are the trianglessimilar?If they are, writea similaritystatementand explainhow you knowthat the tri-anglesare similar..
Answers
- No. One is muchlargerthan the other.
- Yes, SSS.The side lengthsare proportional.