8-8. Angles in Polygons. Course 2. Warm Up. Problem of the Day. Lesson Presentation. 8-8. Angles in Polygons. Course 2. Warm Up Solve. 1. 72 + 18 + x = 180 2. 80 + 70 + x = 180 3. x + 42 + 90 = 180 4. 120 + x + 32 = 180. x = 90. x = 30. x = 48. x = 28. 8-8.

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Drawing Triangles. MTH 3.16a. 1. Using a Protractor. 2. Select SAS triangles. www.mathsrevision.com. 3. Select ASA triangles. 4. Select SSS triangles. 80 o. Q3. Calculate the missing angles. (SAS) Starter Questions. Q1. Convert the percentages to fractions. (a) 30%. (b) 60%.

Drawing Triangles. Using a Protractor. SAS triangles. ASA triangles. www.mathsrevision.com. SSS triangles. 80 o. Q3. Calculate the missing angles. (SAS) Starter Questions. Q1. Convert the percentages to fractions. (a) 30%. (b) 60%. Q2. Write down all the factors of 16.

Tangram Jungle. Name ________________. Square. Right Triangle. Rectangle. Trapezoid. Parallelogram. 3 small triangles. 5 small pieces. All 7 pieces. 3 small triangles. Names _____________________________________ ___________________________________________.

Chapter 3 Triangles Review. BINGO! First 3 people to get BINGO get a PRIZE!!!. Which conjecture proves these triangle are congruent?. What does ASA have that AAS does NOT have?. What information would you need to add so that these triangle are congruent by SAS?.

7 .3 Similar Triangles. Objectives. Identify similar triangles Use similar triangles to solve problems. Similar Triangles. Previously, we learned how to determine if two triangles were congruent (SSS, SAS, ASA, AAS). There are also several tests to prove triangles are similar.

You identified and used congruent angles. 4-3 Congruent Triangles. Name and use corresponding parts of congruent polygons. Prove triangles congruent using the definition of congruence. Vocabulary. If two geometric figures have exactly the same shape and size, they are congruent .