Coming Attractions: hexagon regular Hexagon is regular becaus.

Slides:



Advertisements
Similar presentations
MA.912.G.2.2: Determine the measures of interior and exterior angles of polygons, justifying the method used Tony is drawing a regular polygon. He has.
Advertisements

1. Prove that the sum of the interior angles of a polygon of n sides is 180 (n – 2). § 8.1 C B E D P F A Note that a polygon of n sides may be dissected.
Chapter 24 Polygons.
Students will name two dimensional figures (9-4).
Sum of Angles in Polygons.  A polygon is a two-dimensional (flat) shape that has all straight lines. It needs to be closed, meaning there is an inside.
Polygons Only one of these is a polygon. Do you know? A polygon MUST be a closed figure.
Classifying Polygons Objective; I can describe a polygon.
6-1 The Polygon Angle-Sum Theorems
Choose a category. You will be given the answer. You must give the correct question. Click to begin.
Tessellations 5.9 Pre-Algebra.
In your journal, create this chart PolygonNumber of Angles Sum of degrees Place your tan homework on your desk.
Patterns and Transformations $10 $20 $30 $40 $50 $30 $20 $40 $50 $10 $40 $50 Combine Shapes Patterns Polygons Transformations Transformations are worth.
Lesson 14 Measure of the Angles of Polygons. Get the idea The sum of the measure of interior angles of any triangle is 180°. We can use this fact to help.
Transparency 7 Click the mouse button or press the Space Bar to display the answers.
Lesson 8.2 (Part 2) Exterior Angles in Polygons
6.2 Lesson. Take out your homework Find the value of x. 73 o 38 o x y z.
Tessellations *Regular polygon: all sides are the same length (equilateral) and all angles have the same measure (equiangular)
Holt CA Course Classifying Polygons Preparation for MG2.3 Draw quadrilaterals and triangles from given information about them (e.g., a quadrilateral.
11.3 Polygons Polygon: Closed figure formed by 3 or more straight line segments and the sides do not overlap.
Warm-up 1.. NOTES - Polygons Polygons are classified by the number of sides it has: Pentagon – 5 Hexagon – 6 Heptagon – 7 Octagon – 8 Nonagon – 9 Decagon.
CP Geometry Mr. Gallo. Shapes for the next page. Draw all the diagonals possible from only one vertex. Use the information in the chart on the next page.
7.3 Formulas Involving Polygons. Before We Begin.
7-9 Tessellations Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
Coming Attractions: hexagon regular This figuire is also a tesselation. If its regular then it fits together with no gaps. A tesselation is a shape with.
(page ) Indicator  G2: Properties of 2- dimensional figures.
Here are the eight semi-regular tessellations:
10-8 Polygons and Tessellations
10-3 Area of Regular Polygons. Radius of a regular polygon: the distance form the center to a vertex Apothem: the perpendicular distance from the center.
Lesson 10-4: Tessellation
Coming Attractions: regular It is regular because it fits together with no gaps. hexagon.
Tessellations.
Tessellations 1 G.10b Images from ygons/regular.1.html
5-9 Tessellations Warm Up Problem of the Day Lesson Presentation
 Are patterns of shapes that fit together without any gaps  Way to tile a floor that goes on forever  Puzzles are irregular tessellations  Artists.
 Hidden Lines in Tessellations ◦ “Mind’s Eye” – the angle defined by our mind’s eye to help us find the pattern. ◦ Angles are all the same. ◦ These angles.
POLYGONS A polygon is a closed plane figure that has 3 or more sides.
Lesson 10-4: Tessellation
POLYGONS. What is a Polygon? A closed figure made by joining line segments, where each line segment intersects exactly two others Examples of polygons:
Polygons & Parallelograms
Math-7 NOTES What do you think of when you hear the word “Geometry?”
7-5 Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
The sum of the angles of a triangle is always 180 degrees.
M4G1 Students will define and identify the characteristics of geometric figures through examination and construction. M4G2 Students will understand fundamental.
8-5 Classifying Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
WHAT ARE POLYGONS? Brought to you by powerpointpros.com.
Polygons Only one of these is a polygon. Do you know? A polygon MUST be a closed figure.
Jeopardy Angles Parallel Lines Interior/ Exterior Angles Transformation Similar Polygons Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400.
Plane Figures. What are the types of figures? A closed figure begins and ends at the same end point. An open figure has ends that do not meet.
Class Announcements: We will join Canvas together on Monday. Complete the Exit Ticket by the end of class today. If the Review sheet is not complete, tape.
6.1 Notes: Angles of Polygons
Polygons and angles.
7-5 Polygons Course 2 Warm Up Problem of the Day Lesson Presentation.
Bellwork 43° 88° 2x° (3x + 1)°.
Polygons, Perimeters, and Tessellations
Polygons – Measurements of Angles
Polygons 3 triangle 8 octagon 4 quadrilateral 9 nonagon pentagon 10
Y8 Polygon Workbook.
Interior and Exterior angles
Radial differentiation slide
Angle Relationships in Polygons
Two-Dimensional Figures
Polygons What? Closed figure; 3 or more line segments that do not cross Name a Polygon Count the number of sides 3 - Triangle 4 - Quadrilateral.
Coming Attractions: hexagon regular
All pupils understand and construct tessellations using polygons
8-5 Classifying Polygons Warm Up Problem of the Day
a closed figure whose sides are straight line segments.
The Polygon Angle-Sum Theorem
Types of Polygons Tuesday, 07 May 2019.
Year 9 Mathematics Polygons
Tessellations Geometry Unit 2 Session 4.
Presentation transcript:

Coming Attractions: hexagon regular Hexagon is regular becaus

3 Here is one pair. 720

7.What is the measure of each angle? Explain 4 because 4 triangls can fit in it 8.Does this polygon tessellate? Explain yes of cores they are the exact same

3 sides – 2 = 1 x 180= sides – 2 = 2 x 180= sides – 2 = 3 x 180= HEXAGON octagon decagon pentagon =4x180= =5x180= =6x180= =7x180= =8x180=1440

4. What is the reflex of this angle? ____________________

75 Dbe dbc sssss ssssssss ssssssss ssssss

They all have three angles 3 vertexes and 3 sides.

Use auto shapes to draw a tessellation below This illustration is a tessellation because the shapes fit together with no gapes

Using your chart, explain the pattern you see in Column A All it is doing is counting by 1.

Using your chart, explain the relationship between the numbers in Column A and Column B. What you do is add 2 to each number in the first Colum

Using your chart, describe the pattern you found in Column E. Just add 180 each time you go down

Explain how you found your answer to the 150-sided figure. How do you know that your answer is correct? 150 sided figure =

120 60

180 6x180=

His mistake was making up lines the real answer is 8640.