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Notes Over 9 - 3 Classifying Polygons A polygon with three sides is a _____________. Classifying triangles by angles. Acute Triangle 3 acute angles Right.

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Presentation on theme: "Notes Over 9 - 3 Classifying Polygons A polygon with three sides is a _____________. Classifying triangles by angles. Acute Triangle 3 acute angles Right."— Presentation transcript:

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2 Notes Over 9 - 3 Classifying Polygons A polygon with three sides is a _____________. Classifying triangles by angles. Acute Triangle 3 acute angles Right Triangle 1 right angle Obtuse Triangle 1 obtuse angle

3 Notes Over 9 - 3 Classifying Polygons A polygon with three sides is a _____________. Classifying triangles by sides. Scalene Triangle no congruent sides Equilateral Triangle 3 congruent sides Isosceles Triangle 2 congruent sides

4 Notes Over 9 - 3 Classifying Polygons Judging by appearance, classify each triangle by its sides and angles. 1. Scalene Right 2. Equilateral Acute 3. Isosceles Obtuse

5 Notes Over 9 - 3 Classifying Polygons A polygon with four sides is a ________________. Classifying quadrilaterals by angles and sides.

6 Notes Over 9 - 3 Classifying Polygons Judging by appearance, classify each quadrilateral by its sides and angles. RectangleParallelogramTrapezoid 4. 5.6.

7 Notes Over 9 - 3 Classifying Polygons A polygon with all sides and all angles congruent is a _____________ polygon. 7. Write a formula to find the perimeter of a regular pentagon. 8. Use this formula to find the perimeter if one side is 16 cm.

8 Pg 457 9 – 3 #1 – 8, 9 – 26 Sketch each figure. 1. an isosceles right triangle.

9 Pg 457 9 – 3 #1 – 8, 9 – 26 Sketch each figure. 2. a scalene obtuse triangle.

10 Pg 457 9 – 3 #1 – 8, 9 – 26 Sketch each figure. 3. an isosceles obtuse triangle.

11 Pg 457 9 – 3 #1 – 8, 9 – 26 Find the perimeter of each figure. 4. 9.8 cm 3.5 cm

12 Pg 457 9 – 3 #1 – 8, 9 – 26 Find the perimeter of each figure. 5. An equilateral triangle that has a side of 36 yd

13 Pg 457 9 – 3 #1 – 8, 9 – 26 Find the perimeter of each figure. 6. a square that has a side of 5.1 cm

14 Pg 457 9 – 3 #1 – 8, 9 – 267. Draw a parallelogram without a right angle but with four congruent sides. What is another name for this figure?

15 Pg 457 9 – 3 #1 – 8, 9 – 26 8. Draw a regular quadrilateral.

16 Notes Over 9 - 3 Classifying Polynomials


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