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Chapter 1 Polygons Bell Work What is a polygon? Give some examples. Polygons What is a closed figure in a plane, formed by connecting line segments endpoint to endpoint with each segment intersecting exactly two others? Polygons Not Polygons Polygons What do you call each line segment? What do you call where the sides meet? side Vertex Polygons How do you classify a polygon? Sides Familiar polygons have specific names Name 3 4 5 6 n See complete chart on page 54 The ones without specific names are called? Polygons What does consecutive mean? Find the consecutive angles, vertices and sides of the polygon below: Polygons How do we name a polygon? List the vertices in consecutive order Polygons What line segment connects two nonconsecutive vertices? A diagonal Polygons Concave polygons Congruent polygons Convex polygons If and only if they have the same measures. If no diagonal is outside the polygon If at least one diagonal is outside the polygon Polygons Fill in the blank CAMP ___ _____ Polygons What do you call a polygon which all the sides have equal length? Equilateral polygon What about when all the angles have equal measure? Equiangular polygon What if it’s both? Regular polygon Polygons HLA: page 56 (4-7,12-14,16) Page 62 (1-4) , page 63 (17-21) Checking for Understanding What is a polygon? What are consecutive sides? What are consecutive angles? What is a diagonal? What is a regular polygon? What are corresponding parts of polygons? Triangles and Special Quadrilateral Right Triangle Acute Triangle Obtuse Triangle Scalene Triangle Equilateral Triangle Isosceles Triangle Has three congruent sides Has at least two congruent sides Has one right angle Has one Obtuse Angle Has three acute angles No congruent sides Chapter 1 Triangles and Special Quadrilateral Triangles and Special Quadrilateral Trapezoid Kite Parallelogram Rhombus Rectangle Square 1. 2. 3. 4. 5. 6. 7. 8. quadrilateral 1 pair of parallel sides equilateral 2 pairs of congruent angles 2 pairs of congruent sides equiangular regular 2 parallel sides Triangles and Special Quadrilateral Trapezoid: a quadrilateral with exactly one pair of parallel sides. Kite: a quadrilateral with two distinct pairs of consecutive congruent sides. Parallelogram: a quadrilateral with two pairs of parallel sides. Rhombus: an equilateral parallelogram. Rectangle: a parallelogram with four congruent angles Square: an equilateral rectangle, an equiangular rhombus and a regular quadrilateral. Triangles and Special Quadrilateral HLA: pp. 62 (1-4), 66(1-6) 72 (2-9)

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