Objective: To use angles to classify and measure polygons

Slides:

Advertisements

Similar presentations

Advertisements

Congruent Polygons. Congruent segments have the same length.

S ECTION 1-4 P OLYGONS. A polygon is a closed figure in a plane, formed by connecting segments endpoint to endpoint with each segment intersecting exactly.

8.5 Classifying Polygons.

6-1 A NGLES OF A P OLYGON. POLYGON: A MANY ANGLED SHAPE SidesName 3Triangle 4Quadrilateral 5Pentagon 6Hexagon 8Octagon 10Decagon nn-gon # sides = # angles.

Lesson 1.6 Classify Polygons. Objective Classify Polygons.

Chapter properties of polygons. Objectives  Classify polygons based on their sides and angles.  Find and use the measures of interior and exterior.

F INDING THE AREA OF REGULAR POLYGONS. F INDING AREA OF REGULAR POLYGONS Review of Prior Knowledge Regular Polygon : a polygon in which all sides and.

Classify Triangles Standard 4C.

LESSON 3.2B – CLASSIFYING TRIANGLES Geometry Notes T.2.G.2 Investigate the measures of segments to determine the existence of triangles ( triangle inequality.

Geometry – Grade 5 2-D Shapes.

Exploring.  Figures can be identified, described, compared and classified in different ways.

11.3 Polygons Polygon: Closed figure formed by 3 or more straight line segments and the sides do not overlap.

Lesson 10-6 Pages Polygons. What you will learn! 1. How to classify polygons. 2. Determine the sum of the measures of the interior and exterior.

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

A NSWERS TO E VENS 6) x = 30, 8) x = 50 10) 36012) x = 110, y = 70 14) x = 90, y = 2516) x = 40, y = 30 18) b) No20) 38, 66, 90.

Chapter 11: Measuring Length and Area Area of Regular Polygons.

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

POLYGONS & QUADRILATERALS

Triangle A polygon with three sides and three angles. A triangle can be names by its’ side lengths and angles. – Side lengths: isosceles, equilateral,

11.3 Perimeters and Area of Similar Figures

8.1 Classifying Polygons. Polygon Review  Characteristics of a Polygon All sides are lines Closed figure No side intersects more than 1 other side at.

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:

Similar Figures and Scale Drawings

What is a triangle A plane figure, created by connecting three points that are not in the same line. Three – side polygon whose angles add up to 180°

Bellwork 1) Find x 2)Simplify 3)Find x 2 x 5 x

TRIANGLES AND TYPES OF TRIANGLES. What is a TRIANGLE ? A closed figure formed by joining three line segments is called a TRIANGLE.

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

Abney V. Martinez. Tell which shapes are polygons.  A polygon is a closed plane figure made up of line segments.  Each line segment is a side.  The.

1-6 Classify Polygons.

2.4 Biconditional Statements and Definitions Textbook pg 96.

TODAY IN GEOMETRY… Learning Goal: 1.6 Classify Polygons

Lesson 1-6: Classify Polygons. Polygon A polygon is a closed figure with the following properties It is formed by three or more line segments called sides.

Polygons and Triangles Chapter 10 Lesson 4 and 5

A) Find the measure of

Convex PolygonsConcave Polygons. TermPictureDefinition Convex Polygons Concave Polygons A polygon in which every interior angle measures less than 180˚.

Chapter 1-6 (Classify Polygons)  What is a polygon?  A closed plane figure formed by 3 or more line segments, with no two sides being collinear.

Geometry Section 1.6 Classifying Polygons. Terms Polygon-closed plane figure with the following properties Formed by 3 or more line segments called sides.

1.6 Objective: Classify Polygons. Lingo Polygon: Closed 2 dimensional figure formed by three or more line segments. Each segment connects to exactly two.

Lesson 5.2 Polygon Exterior Angle Sum HOMEWORK: 5.2/ 1-10.

Warm Up # 4 Classify and name each angle. 1 ab c d.

Find the value of x. 1. x + 2x + 3x = 180 6x = x + x + 40 = x + (x + 1) + 35 = x + 40 = 180 x = 70 3x + 36 = x = 48.

By: Joanne Hodgson and Jennifer Campbell Today we will be learning how to classify triangles according to length of sides and measurement of the angles.

Chapter 6-1 Introduction to Polygons. A polygon is a plane figure formed by _______ __________. Each segment is a _______ of the polygon. The common endpoint.

Objective: Finding interior and exterior angles of polygons. Midsegments. Warm up 1.Find the measure of angle J.

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.

J.Byrne Types of Triangles pg 1  The sum of the angles in any triangle is 180°  Equilateral Triangle  3 sides and 3 angles are equal  Isosceles.

Geometry Part 1 LINES LINE SEGMENTS RAYS.

Section Classify Polygons Objective: SWBAT classify polygons

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.

Polygons Similar and Congruent

3-3 & 3-4 Parallel Lines & the Triangle Angle-Sum Theorem

11.1 Angles Measures in a Polygon

Cut out each shape and stick it in your homework book.

Triangles TeacherTwins©2014.

11.3 Perimeters and Area of Similar Figures

Triangles Grade 4.

Work together to classify the triangle below using its angles and sides.

4.1 Classifying Triangles

Triangles Find the value of x in the triangle. x + 78° + 56° = 180°

Lesson 13, 18, 39, & Investigation 4: Introduction to Triangles

Lessons 4.1 & 5.5: Introduction to Triangles

Shapes Polygons and Quadrilaterals

Polygons Objective: Learn to classify polygons.

Module 15: Lesson 1 Interior & Exterior Angles

Presentation transcript:

Objective: To use angles to classify and measure polygons 20.3 Angles and Polygons Objective: To use angles to classify and measure polygons

Polygon A closed Plane figure made up of three or more line segments

Triangle

Quadrilateral

Pentagon

Hexagon

Octagon

Decagon

Regular and Irregular Polygons Regular Polygon: Is a polygon with all sides of equal length and all angles of equal measure

triangle

Quadrilateral

Examples C=35◦ A=130◦ C=26◦

Classwork Homework Txt book Page 436 Q 6 – 13 and Q 20 – 23 Pw Pg 106 Q 1 – 6 and Q 11 – 14