1. Do Now 1. What is the value of 5 0 ? a. 5 b. 50 c. 0 d. 1 2. Four stores are having a sale on the same computer. Which store is offering the best sale price on the computer? a. Store A: 1/5 off the regular price of $625 b. Store B: 1/10 off the regular price of $575 c. Store C: 1/6 off the regular price of $594 d. Store D: 1/4 off the regular price of $688

2. Do Now 1. What is the value of 5 0 ? a. 5 b. 50 c. 0 d. 1 2. Four stores are having a sale on the same computer. Which store is offering the best sale price on the computer? a. Store A: 1/5 off the regular price of $625 b. Store B: 1/10 off the regular price of $575 c. Store C: 1/6 off the regular price of $594 d. Store D: 1/4 off the regular price of $688

3. Do Now 1. What is the value of 5 0 ? a. 5 b. 50 c. 0 d. 1 2. Four stores are having a sale on the same computer. Which store is offering the best sale price on the computer? a. Store A: 1/5 off the regular price of $625 b. Store B: 1/10 off the regular price of $575 c. Store C: 1/6 off the regular price of $594 d. Store D: 1/4 off the regular price of $688

4. Polygons Polygons – closed figures created by connecting line segments Polygons – closed figures created by connecting line segments Minimum of 3 sides Minimum of 3 sides Regular Polygon – a polygon where all the sides and angles are equal Regular Polygon – a polygon where all the sides and angles are equal

5. Polygons Kinds of Polygons Kinds of Polygons Triangle - Triangle - Quadrilateral - Quadrilateral - Pentagon - Pentagon - Hexagon - Hexagon - Heptagon - Heptagon - Octagon - Octagon - Nonagon - Nonagon - Decagon - Decagon -

6. Polygons Kinds of Polygons Kinds of Polygons Triangle – Three sides Triangle – Three sides Quadrilateral - Quadrilateral - Pentagon - Pentagon - Hexagon - Hexagon - Heptagon - Heptagon - Octagon - Octagon - Nonagon - Nonagon - Decagon - Decagon -

7. Polygons Kinds of Polygons Kinds of Polygons Triangle – Three sides Triangle – Three sides Quadrilateral – Four sides Quadrilateral – Four sides Pentagon - Pentagon - Hexagon - Hexagon - Heptagon - Heptagon - Octagon - Octagon - Nonagon - Nonagon - Decagon - Decagon -

8. Polygons Kinds of Polygons Kinds of Polygons Triangle – Three sides Triangle – Three sides Quadrilateral – Four sides Quadrilateral – Four sides Pentagon – Five sides Pentagon – Five sides Hexagon - Hexagon - Heptagon - Heptagon - Octagon - Octagon - Nonagon - Nonagon - Decagon - Decagon -

9. Polygons Kinds of Polygons Kinds of Polygons Triangle – Three sides Triangle – Three sides Quadrilateral – Four sides Quadrilateral – Four sides Pentagon – Five sides Pentagon – Five sides Hexagon – Six sides Hexagon – Six sides Heptagon – Seven sides Heptagon – Seven sides Octagon – Eight sides Octagon – Eight sides Nonagon – Nine sides Nonagon – Nine sides Decagon – Ten sides Decagon – Ten sides

10. Polygons Kinds of Polygons Kinds of Polygons Triangle – Three sides Triangle – Three sides Quadrilateral – Four sides Quadrilateral – Four sides Pentagon – Five sides Pentagon – Five sides Hexagon – Six sides Hexagon – Six sides Heptagon – Seven sides Heptagon – Seven sides Octagon – Eight sides Octagon – Eight sides Nonagon – Nine sides Nonagon – Nine sides Decagon – Ten sides Decagon – Ten sides

11. Polygons There are many examples of quadrilaterals (sum of all angles = 360°) There are many examples of quadrilaterals (sum of all angles = 360°) Square Square Rectangle Rectangle Parallelogram Parallelogram Rhombus/Diamond Rhombus/Diamond Trapezoid Trapezoid

12. Polygons There are many examples of quadrilaterals (sum of all angles = 360°) There are many examples of quadrilaterals (sum of all angles = 360°) Square all 4 sides equal/90° angles Square all 4 sides equal/90° angles Rectangle 2 pairs of equal parallel sides/90° angles Rectangle 2 pairs of equal parallel sides/90° angles Parallelogram 2 pairs of equal parallel sides Parallelogram 2 pairs of equal parallel sides Rhombus/Diamond all 4 sides equal Rhombus/Diamond all 4 sides equal Trapezoid 1 pair of parallel lines Trapezoid 1 pair of parallel lines

13. Polygons – name the polygon 1. One angle is 110° 2. Is a polygon 3. Sum of the angles is 180° 4. Has three sides Triangle (Obtuse)

14. Polygons – name the polygon 1. A quadrilateral 2. Pairs of parallel sides 3. All angles are NOT 90° 4. All four sides are congruent Rhombus

15. Polygons – name the polygon 1. A triangle 2. Two sides congruent 3. Two angles are 40° 4. Sum of the angles is 180˚ Isosceles Triangle

16. Polygons – name the polygon 1. A polygon 2. A regular polygon 3. Five sides 4. The sum of the angles is 540° Pentagon

17. Polygons – name the polygon 1. A quadrilateral 2. 2 sets of parallel sides 3. Angles are 90° 4. All four sides are congruent Square

18. Polygons – name the polygon 1. The sum of the angles are 1080° 2. A regular polygon 3. Figure has eight sides 4. The shape of a stop sign Octagon