By Mr. Dunfee THE SUM OF THE ANGLES OF A TRIANGLE IS 180 DEGREES.

Slides:

Advertisements

Similar presentations

1.6 – Two-Dimensional Figures

Advertisements

Chapter 24 Polygons.

Objectives Classify polygons based on their sides and angles.

Students will name two dimensional figures (9-4).

Do Now 1. What is the value of 5 0 ? a. 5 b. 50 c. 0 d Four stores are having a sale on the same computer. Which store is offering the best sale.

2 dimensional shapes and other geometry terms

Number of sidesName of polygon 3triangle 4quadrilateral 5pentagon 6hexagon 7heptagon 8octagon 9nonagon 10decagon A polygon is a shape enclosed by straight.

Bell Work The length of segment AB is 5 ⅙ cm and the length of segment BC is 9 ⅕ cm. What is the length of segment AC?

6.14 Polygons The student will identify, classify, and describe the characteristics of plane figures, describing their similarities, differences, and defining.

Chapter 6 Polygons. Definitions Polygon – many sided figure 3 sided – triangles 4 sided – quadrilaterals 5 sided – pentagons 6 sided – hexagons 7 sided.

Geometry Review.

Classifying Polygons.

Triangles and Polygons

Polygon Angles. Naming by # of sides. Polygons have specific names based on the number of sides they have: 3 – Triangle 4 – Quadrilateral 5 – Pentagon.

Shape and Space INTERNAL ANGLES. POLYGON (REGULAR). A polygon is a two dimensional shape with straight sides. There are two types of polygon, regular.

Exploring Polygons. What are polygons? A polygon is a closed figure made by joining line segments, where each line segment intersects exactly two others.

1.6 Classify Polygons. Identifying Polygons Formed by three or more line segments called sides. It is not open. The sides do not cross. No curves. POLYGONS.

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.

Polygons Lesson What is a polygon? A polygon is a simple, closed, two-dimensional figure formed by three or more line segments (sides). Closed?

Do Now ChalkUp “Quadrilateral Review”. 3/17/ C Polygons.

Polygons Polygons are many-sided closed figures, with sides that are line segments. Polygons are named according to the number of sides and angles they.

The Polygon Project by Connor. Definition A polygon is a shape with 3 or more sides Poly means how many and gon means angles in the language of Greece.

Lesson 2 Geometry Review.

POLYGONS A polygon is a closed plane figure that has 3 or more sides.

POLYGONS. What is a Polygon? A closed figure made by joining line segments, where each line segment intersects exactly two others Examples of polygons:

5.1 Polygon Sum Conjecture

8.2 Angles in Polygons Textbook pg 417. Interior and Exterior Angles interior angles exterior angle.

Geometry. 3 sides 4 sides 5 sides 6 sides 8 sides 9 sides 10 sides 12 sides triangle quadrilateral pentagon hexagon octagon nonagon decagon dodecagon.

Angles-Polygons-Triangles- Quadrilaterals Angles If two lines cross we say they INTERSECT. If two lines in the same plane do not intersect, we say they.

The sum of the angles of a triangle is always 180 degrees.

1-6 Classify Polygons.

Polygons and Triangles Chapter 10 Lesson 4 and 5

Reviewing angles and polygons

By Mr. Dunfee Be sure to take these notes, or you will not be able to work at the computer.

What will we accomplish? We will review the naming of polygons. We will classify quadrilaterals by their characteristics.

Classifications Bowen’s Class. Quadrilateral Any four sided polygon Any four sided polygon.

Part 1 Polygons Triangles A triangle is a polygon with 3 sides. VERTEX SIDE A=1/2bh or A=bh/2.

CLASSIFYING POLYGONS Unit 1 Lesson 6. Classifying Polygons Students will be able to: Identify the 2-dimensional shapes based on their properties. Key.

Polygon Worksheet 1. Concave Polygon Convex Polygon.

Section 9.2 Polygons.

etryandmeasurement/polygons/

Polygons – Measurements of Angles

Triangle Vocabulary Equilateral:

Polygons 3 triangle 8 octagon 4 quadrilateral 9 nonagon pentagon 10

Y8 Polygon Workbook.

Angle Relationships in Polygons

Classify each quadrilateral below with its best name.

Polygons By Beth Roberts.

Lesson 3-4 Polygons Lesson 3-4: Polygons.

Section 9.2 Polygons.

ANGLES OF POLYGONS.

3.4 The Polygon Angle-Sum Theorems

Classifying Polygons.

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.

Polygon Name Definition Examples

Exploring Polygons.

Math Humor Q: What type of figure is like a lost parrot?

Lesson 3-4 Polygons.

Polygons Objective: Learn to classify polygons.

1. Who Am I? My total angle measure is 360˚.

Classifying Polygons.

Quadrilaterals and other Polygons

Polygons and Angles Sec 12 -1E pg

Section 6.1 Polygons.

Geometry Vocabulary.

Lesson 3-4 Polygons.

Presentation transcript:

By Mr. Dunfee

THE SUM OF THE ANGLES OF A TRIANGLE IS 180 DEGREES.

Classifying triangles according to the measure of the angles of the triangle.

All 3 angles measure less than 90 degrees.

One angle measures 90 degrees and the other two angles are acute.

One angle that measures more than 90 degrees and the other two are acute.

Classifying triangle according to the length of the sides of the triangles.

The lengths of the sides are not congruent. The lengths are not equal in size.

The lengths of two sides are congruent.

The lengths of all three sides are equal in size which means they are congruent.

Congruent triangles are triangles that are equal in size and shape. They have the same length of the sides and have the same measure of the angles.

Side Angle Side

Side Side Side

Angle Side Angle

Polygons A polygon is a many sided closed figure.

POLYGONS Triangle-3 sided Quadrilateral-4 sided Pentagon-5 sided Hexagon-6 sided

Polygons Heptagon--7sided Octagon--8 sided Nonagon--9 sided Decagon--10 sided

Polygons Undecagon--11 sided Dodecagon--12 sided **A regular polygon has equal sides.**

SQUARE ALL SIDES ARE CONGRUENT OPPOSITE SIDES ARE PARALLEL. 4 RIGHT ANGLES

OPPOSITE SIDES ARE CONGRUENT AND PARALLEL. 4 RIGHT ANGLES.

OPPOSITE SIDES ARE CONGRUENT AND PARALLEL

OPPOSITE SIDES ARE PARALLEL. ALL SIDES ARE CONGRUENT.

Has 2 parallel lines.