Polygons.pptx GRADE 5 MATHEMATICS - 3RD QUARTER
- 2. Basic Geometric Terms . Point Line Line segment Ray Angle Plane -is an exact location in space or a flat surface -is a set of all points that extends infinitely in both directions -is a part of the line with two end points -starts from one point and extend infinitely in one direction -is formed when two rays meet at a common endpoint -is a flat two-dimensional surface that extends infinitely far
- 3. Visualizing, Naming, Describing, and Drawing Polygons with Five or More Sides LESSON 1
- 4. Polygon A polygon is a closed 2-dimensional figure made up of three or more straight line segments. Each line segment on a polygon is a side. Each corner, or vertex, of a polygon forms an angle. 3 sides . . . 3 vertices 3 angles TRIANGLE
- 5. Cross -out which of the following is not a polygon.
- 6. Polygons are named by the number of sides they have. Figure Sides, Vertices, Angles Name 3 Triangle 4 Quadrilateral 5 Pentagon 6 Hexagon 7 Heptagon
- 7. Polygons are named by the number of sides they have. Figure Sides, Vertices, Angles Name 8 Octagon 9 Nonagon 10 Decagon 11 Undecagon/ Hendecagon 12 Dodecagon
- 8. Describe how many sides and name of the polygon is being shown. No. of Sides:_____ Name of the Polygon:_________ No. of Sides:_____ Name of the Polygon:_________ No. of Sides:_____ Name of the Polygon:_________ No. of Sides:_____ Name of the Polygon:_________ No. of Sides:_____ Name of the Polygon:_________
- 9. Complete the chart by counting the parts for each regular polygon.
- 10. Describing and Comparing Properties of Polygons (Regular and Irregular) LESSON 2
- 11. A regular polygon has same length in sides and same measurement in angles. Regular Pentagon Irregular Pentagon
- 12. Regular Polygons Irregular Polygons
- 14. Two polygons are congruent if their corresponding sides have equal lengths, and their corresponding angles measure the same.
- 15. How to Draw a Regular Polygon Using a Protractor Materials: 1. Protractor 2. Ruler 3. Pencil
- 16. How to Draw a Regular Polygon Using a Protractor 1. Draw a straight line using the protractor. This will be the center line of your circle (dividing it into semi-circles). Procedures: 2. Align the protractor so that both 0° and 180° lie on the center line. Mark the center point. 3. Calculate the angle between adjacent vertices, by dividing 360 ° by the number of sides. 4. Mark a point for each of the successive angles. 5. Using the ruler, joint the points marked on the circle with a line segment 6. Check to see that the sides are the same length. If they are, you can erase the other marks made to make it now a polygon. .
- 17. Draw the congruent polygon of the figure at the left using the grid at the right.
- 18. MATHtry Nga!
- 19. 1. Which among the figures below is an example of a polygon? A. L and O B. O and V C. L and E D. V and E L O V E
- 20. 2. What polygon is being shown in the figure? A. Hexagon B. Heptagon C. Nonagon D. Octagon
- 21. 3. Look at the figure. If I am inside of a hexagon but I am not a pentagon, who am I? A. Hexagon B. Decagon C. Heptagon D. Dodecagon
- 22. 4. Which of the following figure is not a regular polygon? A. B. C. D.
- 23. 5. Which pair shows congruent polygons? A. B. C. D.
- 24. ASYNCHRONOUS ACTIVITY What I Can Do and Assessment on pages 8-9 (SLM)