4-1 Classifying Triangles

Slides:

Advertisements

Similar presentations

Chapter 4: Congruent Triangles Lesson 1: Classifying Triangles.

Advertisements

7/3/2015 Geometry 1 Classifying Triangles Free powerpoints at

Classifying Triangles. What do we remember about classifying angles? What are the different types of angles? Acute, right, obtuse, and straight.

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.

Triangles Review.

Section 4.1 Classifying Triangles

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.

GEOMETRY 4-1 Classifying Triangles. 4-1 Classifying Triangles By angle measures: Acute Triangle: 3 acute angles Right Triangle: 1 right angle Obtuse Triangle:

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

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

GEOMETRY 4-1 Classifying Triangles. Acute Triangle Three acute angles Triangle Classification By Angle Measures.

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

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

Classifying Triangles Classifying by Angles: Acute - 3 acute angles Obtuse - 1 obtuse angle Right - 1 right angle Equiangular – An acute triangle with.

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

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

4.1 Types of Triangles You can classify a triangle by its sides and its angles. There are THREE different classifications for triangles based on their.

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

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.

Sum of Angles in Triangles. Triangles classified by sides A scalene triangle has no congruent sides. An isosceles triangle has at least 2 congruent 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.

Sum of Angles in Triangles. Triangles classified by sides A scalene triangle has no congruent sides. An isosceles triangle has at least 2 congruent sides.

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.

Classify the triangle by its angles and by its sides.

3.6 Types of Triangles Objective:

IDENTIFYING TRIANGLES

Classifying Triangles

Geometry 4.1 Triangle and Angles.

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

Triangles: Classifications, Angles and More

CLASSIFICATIONS, ANGLES AND MORE!!

Classifying Triangles

7.7.3 Triangles.

Classifying Triangles

CLASSIFICATIONS, ANGLES AND MORE!!

Classifying Triangles

Classifying Triangles

4.1 Classifying Triangles

Applications of the Distance Formula

IDENTIFYING TRIANGLES

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

Classifying Triangles

Classifying Triangles

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

Classifying Triangles

4-1 Classifying Triangles

Objective - To classify triangles.

Triangles Guided Notes

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

Classifying Triangles

Classifying Triangles

Objectives Classify triangles by their angle measures and side lengths. Use triangle classification to find angle measures and side lengths.

3-3 Parallel Lines & the Triangle Angle Sum Theorem

4-1 Vocabulary Acute triangle Equiangular triangle Right triangle

Intro to Triangles.

5-7 Isosceles and Equilateral Triangles

Classifying Triangles

Classifying Triangles

Classifying Triangles

Classifying Triangles

Presentation transcript:

4-1 Classifying Triangles Classifying by Angles Acute: 3 acute angles Equiangular: 3 congruent acute angles Obtuse: 1 obtuse angle Right: 1 right angle Classifying by Sides Equilateral: 3 congruent sides Isosceles: 2 congruent sides Scalene: No congruent sides

Classifying Examples Ex 1: Classify by angles Ex 2: Classify by sides

More Classifying Examples Ex 3: Classify by angles Ex 4: Classify by sides

Using Algebra to Classify Ex 5: Find y and the length of each side if △ABC is isosceles with AB = BC.

Classwork/Homework P. 240-241 2-36 even