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## 7.3 Outline

- Terminology
- six parts of a triangle
- classifying triangles
- by sides
- scalene
- isosceles
- equilateral

- by angles
- acute
- right
- obtuse

- congruent triangles
- construction
- corresponding parts

- Angles of a triangle
- angles in a triangle
- exterior angle
- exterior angle property

- Isosceles triangle

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## 7.2 Outline

- Angles
- vertex (pl. vertices)
- angle
- notation for angles
- equal angles
- degree
- classifications
- acute
- right
- obtuse
- straight

- congruent angles
- complementary angles
- supplementary angles
- adjacent angles
- vertical angles

- Polygons
- definition
- regular polygon
- classifications
- quadrilateral
- classification
- trapezoid
- parallelogram
- rhombus
- rectangle
- square

…

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