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

Slides:

Advertisements

Similar presentations

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

Advertisements

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?

ADVANCED GEOMETRY 3.6 Types of Triangles LEARNER OBJECTIVE: Students will classify triangles by sides and by angles and will complete problems and proofs.

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.

Wednesday, September 26, 2012 Homework: p. 185 #31, 34, 43 & 44 (36-42 mentally)

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.

4-2 Identifying Triangles

Section 3-4: Parallel Lines and the Triangle Angle-Sum Theorem.

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.

Goal, to classify triangles by their sides and by their angles.

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 Shahd ayman 5 Th primary Mr.arafat mohamed Geometry.

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.

3/9/2016 Geometry 1 Classifying Triangles Free powerpoints at

Holt McDougal Geometry 4-2 Classifying Triangles 4-2 Classifying Triangles Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson.

Holt Geometry 4-1 Classifying Triangles 4-1 Classifying Triangles Holt Geometry.

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.

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 These Triangles by Sides and Angles. Chapter 4 Congruent Triangles Section 4.1: Triangle Sum Properties Todays Objective: Determine if a right.

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

Section 4-1 Triangles and Angles.

Warm Up 5-1 Classify each angle as acute, obtuse, or right

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

Classify the triangle by its angles and by its sides.

IDENTIFYING TRIANGLES

Geometry 4.1 Triangle and Angles.

Warm Up Classify each angle as acute, obtuse, or right

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!!

7.7.3 Triangles.

Classifying Triangles

Classifying Triangles

CLASSIFICATIONS, ANGLES AND MORE!!

Classifying Triangles

Classifying Triangles

Classifying Triangles

IDENTIFYING TRIANGLES

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

Classifying Triangles

Classifying Triangles

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

Classifying Triangles

Chapter 4: Triangles Classifying Triangles by sides:

3-3 Parallel Lines & the Triangle Angle Sum Theorem

4-1 Vocabulary Acute triangle Equiangular triangle Right triangle

Classifying Triangles

Classifying Triangles

4-1 Classifying Triangles

Classifying Triangles

Presentation transcript:

GEOMETRY 4-1 Classifying Triangles

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

Equiangular Triangle Three congruent acute angles Triangle Classification By Angle Measures

Classify Each Triangle According to Angle Measure

4-1 Classifying Triangles By side length: Scalene Triangle: no congruent sides Isosceles Triangle: at least two congruent sides Equilateral Triangle: 3 congruent sides

Classify Each Triangle by Side Length

Find the length of each side. 3x - 2 5x - 4 2x –.5

Example: Word Problem A steel mill produces roof supports by welding pieces of steel beams into equilateral triangles. Each side of the triangle is 18 feet long. How many triangles can be formed from 340 feet of steel beam?