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8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Warm up Identify the similarity ratio AND find the perimeter AND area of rectangle RSTU.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
8.2 & 8.3 Proving Triangles Similar by AA, SSS, & SAS
What additional information do you need to prove the triangles above similar?
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Determine if the following triangles are similar and if so, write a similarity statement.
1.
2.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Angle Angle Practice ProblemAre the triangles below similar?
The photo shows a gable roof. AC || FG. ∆ABC ~ ∆FBG. Find BA to the nearest tenth of a foot.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Example: Verify that the triangles are similar if ∆PQR
and ∆STU.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Verify that ∆TXU ~ ∆VXW.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Side Angle Side Practice ProblemsAre the triangles pictured below similar? Use SAS to
determine the answer. Reminder: Use magic pen to create spot light.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Explain why ∆RSV ~ ∆RTU and then find RT.
Practice
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
• In the figure below AB ll DE. Find CB.
Solve for x using _____ Postulate
CB=4
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
8.2: HW: pg. 431: 3, 7 – 19 (o), 21, 34 – 36
8.3: HW: pg. 441: 3 – 25 (o), 29
HOMEWORK:
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
Solve for x using SAS Postulate
80.5 m
How tall is the tree?
Hint: move tree to find answer.
8.28.3 Proving Triangles Similar by AA, SSS, SAS with answers
1. Explain why the triangles are similar and write a similarity statement.
2. Explain why the triangles are similar, then find BE and CD.
3. Rectangle ABCD has a length of 2.6 cm and a width of 1.8 cm. Reactangle WXYZ has a length of 7.8 cm and a width of 5.4 cm. Determine whether rectangle ABCD is similar to rectangle WXYZ. Explain your reasoning.