Triangles.

Slides:

Advertisements

Similar presentations

Triangles TOPIC 9 LESSON 9-5.

Advertisements

Report by Jennifer Johnson

Angles and Triangles.

Blue – 2/23/2015 Gold – 2/24/ Name 2 pair of alternate interior angles  5 &  3 and  4 &  1 2. What is the sum of m  1 + m  2 + m  3? 180°

TRIANGLES AND TYPES OF TRIANGLES

Bell Work Name the Angle in four different ways

HOW MANY SIDES ARE THERE, AND WHAT IS THEIR ANGLE?

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

Classify Triangles Standard 4C.

Defining Triangles During this lesson, you will define triangles and their parts.

Angles and Triangles. Angles  A shape formed by two rays sharing a common endpoint; contains two rays and a vertex ray vertex ray—has one endpoint and.

Triangle Inequality Notes. Triangle Inequality Theorem  Scalene triangle: A triangle that has no congruent (equal) sides. None of their angles are congruent.

Angles and Triangles. Angles  A shape formed by two rays sharing a common endpoint; contains two rays and a vertex ray vertex ray—has one endpoint and.

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

4-1 Classifying Triangles

They come in many shapes and sizes! 3 measure angles –Acute –Right –Obtuse 3 measure sides –Scalene –Isosceles –Equilateral There are 6 types of triangles.

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.

Triangle Sum Theorem The sum of the angle measures in a triangle is 180 degrees.

Triangles Who Wants To Be A Millionaire? Question 1.

Warm Up Types of Triangle Chapter 3.6 Objective- name the various types of triangles and their parts.

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

Triangle Congruence 4.5 Isosceles and Equilateral Triangles.

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 Lesson Classifying by Angle Acute triangles have three acute angles. Obtuse triangles have one obtuse angle. Right triangles.

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.

Angles and Triangles. Angles  A shape formed by two rays sharing a common endpoint; contains two rays and a vertex ray vertex ray—has one endpoint and.

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.

Geometry Triangles What is a Triangle? A three sided convex polygon. A three sided convex polygon. Its three segments are called sides. Its three segments.

Who Wants To Be A Millionaire?

IDENTIFYING TRIANGLES

Classifying Triangles

Geometry 4.1 Triangle and Angles.

4.7 – Use Isosceles and Equilateral Triangles

Angles and Triangles.

Classifying Triangles

Angles In Triangles Types of Triangles Isosceles triangle

Angles and Triangles.

Classifying Triangles

Angles In Triangles Types of Triangles Isosceles triangle

IDENTIFYING TRIANGLES

Right Triangle Definition: A triangle with one 90 degree angle.

Lesson 3-2 Isosceles Triangles.

Classifying Triangles

Sec 5.4: Classifying Triangles

Classifying Triangles

Objective - To classify triangles.

Add up all the sides Perimeter of Area of a Rectangle: ANY polygon:

Identify type of triangle

Types of Triangles Thursday, 11 April 2019.

Types of Triangles Thursday, 11 April 2019.

3-3 Parallel Lines & the Triangle Angle Sum Theorem

4-1 Vocabulary Acute triangle Equiangular triangle Right triangle

Front of Flipbook Right Triangles Acute Triangles Obtuse Triangles

Triangles Teacher Twins©2014.

Triangles Teacher Twins©2014.

Equilateral TRIANGLES

Classifying Triangles

Classifying Triangles

Presentation transcript:

Triangles

Types of Triangles Equilateral triangle: A triangle with three congruent (equal) sides and three equal angles These marks indicate equality.

Types of Triangles Isosceles triangle: A triangle with at least two congruent (equal) sides

This box indicates a right angle or a 90-degree angle. Types of Triangles Right triangle: Has only one right angle (90 degrees) This box indicates a right angle or a 90-degree angle.

Types of Triangles Scalene triangle: A triangle that has no congruent (equal) sides

Types of Triangles Name each type of triangle 2 4 1 3

Types of Triangles Name each type of triangle Right 4 2 Scalene 1 3 Equilateral Isosceles