Learning Objective Identify triangles using their sides.

Slides:

Advertisements

Similar presentations

Let’s review our shapes….

Advertisements

Triangles TOPIC 9 LESSON 9-5.

TRIANGLES AND TYPES OF TRIANGLES

Mathematics Types of Triangles By: Jenny Ordonez.

EXAMPLE 1 Classifying a Triangle a.Classify XYZ by its angles. b. Classify XYZ by its side lengths. SOLUTION a. The triangle has a right angle at Y. So,

Classifying Triangles Students will classify triangles using the lengths of the sides and the angles. S. Calahan October 2010.

Classify Triangles Standard 4C.

Geometry The shape of things to come….

Classifying Triangles Add the following to your math notes.

EQUILATERAL & ISOSCELES Quiz tomorrow. CLASSIFY the triangle by ANGLES and SIDES Angles: acute, obtuse, right Sides:equilateral, isosceles, scalene 91.

Types of 2 D Shapes and There Properties 1)A shape with 3 sides is called a triangle 2)A shape with 4 sides is called a quadrilateral 3)The general term.

Learning Objective Students will identify attributes of triangles. skill concept context.

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

Triangle Classification. Objectives Classify triangles by their angle and side measures Find the sum of the measure of the interior and exterior angles.

Triangles A Guided PowerPoint Presentation. 15cm 5cm 10cm 94º 1.

©G Dear2008 – Not to be sold/Free to use

TRIANGLES AND TYPES OF TRIANGLES. A triangle has three sides.

Types of Triangles. Equilateral Triangle All sides are the same length and all the angles are the same length.

Triangles 1st year P26 Chapter 4.

Types of Triangles. Angles The angles in a triangle add up to o + 60 o + 60 o =

Directions: You need 15 toothpicks. ©2009, Dr. Jennifer L. Bell, LaGrange High School, LaGrange, GeorgiaAdapted from various sources.

Triangles Who Wants To Be A Millionaire? Question 1.

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

Classifying Triangles Math 7 Ms. Conway Math 7 Ms. Conway.

Triangles Shapes with 3 sides! Equilateral Triangle All 3 Sides are equal in Length All 3 interior angles are the same.

Equilateral, Isosceles, Scalene, Right, Acute, Obtuse Types of Triangles.

Time for Triangles. What is a triangle? A triangle is a polygon. It has 3 sides and 3 angles. It can also be called a trigon.

Classifying Triangles How many degrees can be found in all triangles? 180 We can classify triangles 2 ways: By their angles By their sides.

Classifying Triangles. Two Ways to Classify Triangles  By Their Sides  By Their Angles.

Scalene triangle: A scalene triangle is a triangle that has no equal sides. The following is a scalene triangle.

Lesson 8.3 Concept: How to classify triangles by their sides and angles. An equilateral triangle has three sides of the same length. An isosceles triangle.

Mathematics Types of Triangles.

Who Wants To Be A Millionaire?

Angles In Triangles Types of Triangles Isosceles triangle

All about Triangles Ask Boffin!.

Classifying Triangles

MCC.4.G.1-2 All About Triangles.

TRI NGLES 2 ways to classify: By Sides By Angles 60 4” 4” 4” 60 60

Classifying Triangles

Angles In Triangles Types of Triangles Isosceles triangle

TRIANGLES AND TYPES OF TRIANGLES

Classifying Triangles

Classifying Triangles

Triangles Created by G. Antidormi 2005.

Angles In Triangles Types of Triangles Isosceles triangle

Classifying Triangles

Classifying Triangles

Objective - To classify triangles.

Triangles Guided Notes

Identify type of triangle

Types of Triangles Thursday, 11 April 2019.

Types of Triangles Thursday, 11 April 2019.

4-1 Vocabulary Acute triangle Equiangular triangle Right triangle

Front of Flipbook Right Triangles Acute Triangles Obtuse Triangles

Intro to Triangles.

Triangles Teacher Twins©2014.

Triangles Teacher Twins©2014.

Classifying Triangles

Equilateral – equal All sides are equal length.

TWO SIDES-ANGLE AND PERIMETER-RATIO

Classifying Triangles

Area and Perimeter Triangles.

Presentation transcript:

Learning Objective Identify triangles using their sides

You already know… A triangle has 3 sides.

Equilateral triangle ALL sides are equal 7 7 7

Isosceles Triangle 2 sides are equal 8 8 6

Scalene Triangle NONE of the sides are the same length 8 7 6

Examples Examples

Non-Examples 

Think… What would be the name of this triangle?

Think… How do you know this is a scalene triangle?

Importance It will be on the district test It can help you build things

Step 1 Look at the length of the sides.

Step 2 Ask are all sides equal? Yes NO equilateral Keep Looking!!!

Step 3 Ask are 2 sides equal? Yes NO isosceles Keep Looking!

Step 4 Ask are NO sides equal? Yes scalene

Model: Scalene Triangle

Guided Practice Isosceles

Guided Practice Guided Practice Scalene

Guided Practice Equilateral

Closure Why is identifying triangles by their sides important? How did we identify triangles?