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# Polygons julia and olatz

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### Polygons julia and olatz

1. 1. POLYGONS Julia eta Olatz
3. 3. <ul><li>A four sided polygon. </li></ul><ul><li>All right angles </li></ul><ul><li>Area: base x height </li></ul>1.1. RECTANGLES
4. 4. <ul><li>A four sided polygon </li></ul><ul><li>All right angles </li></ul><ul><li>Equal sides </li></ul><ul><li>Area: side x side </li></ul>1.2. SQUARE
5. 5. <ul><li>A four sided polygon </li></ul><ul><li>Two pairs of parallel sides </li></ul><ul><li>Area: base x height </li></ul>1.3. PARALLELOGRAMS
6. 6. <ul><li>Four sided polygon </li></ul><ul><li>Four sides of equal lenght </li></ul><ul><li>Area: (D x d) : 2 </li></ul>1.4. RHOMBUS
7. 7. <ul><li>Four sided polygon </li></ul><ul><li>Exactly one pair of parallel sides, they are called bases </li></ul><ul><li>Area: (B + b) x height </li></ul><ul><li>2 </li></ul>1.5. TRAPEZOID
8. 8. 2. TRIANGLES
9. 9. 2.1. Because of the lenght of the sides:
10. 10. <ul><li>Three sides have the same lenght </li></ul><ul><li>The angles measure 60 degrees </li></ul>2.1.1. EQUILATERAL
11. 11. <ul><li>Two sides have the same lenght, and the other has different </li></ul>2.1.2. ISOSCELES
12. 12. <ul><li>The three sides have different lenght </li></ul>2.1.3. SCALENE
13. 13. 2.2. Because of the angles
14. 14. <ul><li>It has three acute angles (less than 90 degrees) </li></ul>2.2.1. ACUTE
15. 15. <ul><li>One of the three angles measures more than 90 degrees </li></ul>2.2.2. OBTUSE
16. 16. <ul><li>One angles is right (90 degrees) </li></ul>2.2.3. RIGHT
17. 17. We also can find polygons around us:
18. 18. Circle and octogon
19. 19. Rectangles
20. 20. Circle
21. 21. Triangle
22. 22. Rectangle