Polygons Only one of these is a polygon. Do you know? A polygon MUST be a closed figure.

Slides:



Advertisements
Similar presentations
The shapes below are examples of regular polygons
Advertisements

Objective: To be able to work out the interior and exterior angles of a polygon.
THE WORLD OF POLYGONS LESSON 4.
Polygons Test Review. Test Review Find the missing angle. 50.
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 Polygons Textbook page 303. Definitions A polygon is a plane figure that is formed by three or more segments called sides. (a closed, sided figure)
2 dimensional shapes and other geometry terms
March Which one of the following is a regular polygon?
Plane Shapes Plane Shapes Two-Dimensional Shapes.
LESSON 15.1 OBJECTIVE : WHEN PRESENTED WITH VARIOUS POLYGON PICTURE CARDS, THE STUDENTS WILL ORALLY SAY WHAT KIND OF POLYGON IT IS BASED ON ITS SIDES AND.
2 D shapes only have two dimensions, such as width and length Some are: Polygons and Some are: Not Polygons.
Two - Dimensional Shapes
Unit 8 Review. Which of the following shapes are CONGRUENT?
Polygons By Ryan.
Math Jeopardy For more information, click >>>>>> Where two faces meet edge.
Introduction to congruent angles
Shapes and Designs Jeopardy Names of Polygons
POLYGONS. BUILDING POLYGONS We use line segments to build polygons. A polygon is a closed shape with straight sides.
Patterns and Transformations $10 $20 $30 $40 $50 $30 $20 $40 $50 $10 $40 $50 Combine Shapes Patterns Polygons Transformations Transformations are worth.
1 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt Lines,
Math 2 Geometry Based on Elementary Geometry, 3 rd ed, by Alexander & Koeberlein 2.5 Convex Polygons.
By. Circle Draw a circle in the box Tell about its attributes: sides, angles, whether or not it’s a polygon. Add any additional information you know about.
Holt CA Course Classifying Polygons Preparation for MG2.3 Draw quadrilaterals and triangles from given information about them (e.g., a quadrilateral.
Preview Warm Up California Standards Lesson Presentation.
Warm Up 7.3 Formulas involving Polygons Use important formulas that apply to polygons.
8-4 Angles in Polygons Problem of the Day How many different rectangles are in the figure shown? 100.
Do Now ChalkUp “Quadrilateral Review”. 3/17/ C Polygons.
7.3 Formulas Involving Polygons. Before We Begin.
Our learning objectives today: To be able to recognise and name 2D shapes. To know about quadrilaterals.
Shape of the Day. Assessment 1.Name each shape. 2.Tell 3 things all of these shapes have in common. 3.What are two names that classify ALL of.
Is this a square or a pentagon? It is a square.
POLYGONS & QUADRILATERALS
2D shapes © D shapes How do most 2D shapes get their names? 3 – Triangle 5 – Pentagon 6 – Hexagon 7- Heptagon 8 – Octagon.
 Hexagons have 6 sides and 6 angles and vertices.
POLYGONS A polygon is a closed plane figure that has 3 or more sides.
7-5 Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
Holt CA Course Classifying Polygons Warm Up Warm Up California Standards Lesson Presentation Preview.
The sum of the angles of a triangle is always 180 degrees.
8-5 Classifying Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
ANGLES OF POLYGONS. Polygons  Definition: A polygon is a closed plane figure with 3 or more sides. (show examples)  Diagonal  Segment that connects.
8-8 Angles in Polygons Course 2 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation Lesson Presentation.
Interior Angle Sum = ( n – 2 )( 180° ) Find the interior angle sum of each polygon. ( 4 – 2 ) 180°= ( 2 ) 180°= 360° ( 6 – 2 ) 180°= ( 4 ) 180°= 720° 1)
1 st Grade Classroom Bee. What shape is this? hexagon.
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.
The Polygon Angle-Sum Theorem. Check Skills You’ll Need Find the measure of each angle of quadrilateral ABCD
Determine the name of the polygon
2D Shapes.
Problem of the Day Solve for y, justify your answer 15x (x + 7)
Classify Quadrilaterals
Preview Warm Up California Standards Lesson Presentation.
7-5 Polygons Course 2 Warm Up Problem of the Day Lesson Presentation.
1.6 Two Dimensional Figures
Types of Polygons Polygon- a flat closed figure made of straight line segments Circle the figures that are polygons. Cross out the figures 
that are.
Lesson 3.3 Objective/Topic: Determine the sum of interior angles of a polygon. To determine the measures of exterior angles of a polygon. Essential Question:
8th Grade Math Chapter 8 Review
Two- Dimensional Figures
The rectangle is split into 4 equal parts
INTRODUCTION TO POLYGONS
Geometry Congruence.
Angles in Polygons.
Polygons.
9.4 - Polygons Grade 4.
Attributes Straight sides Closed figure 3 or more sides
Shapes Polygons and Quadrilaterals
8-5 Classifying Polygons Warm Up Problem of the Day
a closed figure whose sides are straight line segments.
The Polygon Angle-Sum Theorem
By 2-D shapes.
Unit 8 Review.
Presentation transcript:

Polygons Only one of these is a polygon. Do you know? A polygon MUST be a closed figure.

Polygons Only one of these is a polygon. Do you know? A polygon MUST have all straight sides.

Polygons Can you come up with a good definition of a polygon? A polygon is a closed plane figure with straight sides.

TRUE or FALSE Circles are polygons. Triangles are a type of a polygon. Rectangles are polygons. All quadrilaterals are polygons. T T T F

Polygons Time for Math Boards! Please draw ANY polygon on your board.

Polygons Polygons are classified by the number of sides they have.

NEW WORD!!!! Vertices Vertices is another word for corner. Vertex = corner Vertices = vertex plural

Polygons Can you name these polygons? How many sides? How many angles or vertices? 3 3 Triangle

Polygons Can you name these polygons? How many sides? How many angles or vertices? 4 4 Quadrilaterals

Polygons Can you name these polygons? How many angles or vertices? 5 Pentagon How many sides? 5

Polygons Can you name these polygons? How many sides? How many angles or vertices? 6 6 Hexagon

Polygons Can you name these polygons? How many sides? How many angles or vertices? 8 8 Octagon

Polygons Did you notice anything about the sides and angles of each shape? The number of angles (or vertices) and sides is the same.

Name That Polygon Triangle

Hexagon Name That Polygon

Quadrilateral

Name That Polygon Octagon

Name That Polygon Quadrilateral

Name That Polygon Pentagon

Time to Draw! Draw a hexagon.

Time to Draw! Draw an octagon.

Time to Draw! Draw a pentagon.

Time to Draw! Draw a quadrilateral.