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TRIANGLES AND TYPES OF TRIANGLES We get a TRIANGLE by joining three non collinear points . What is a TRIANGLE ? A closed figure formed by joining three line segments ...

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TRIANGLES AND TYPES OF TRIANGLES We get a TRIANGLE by joining three non collinear points . What is a TRIANGLE ? A closed figure formed by joining three line segments ...

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Pythagorean Theorem, Classifying triangles, Right Triangles By: Matthew B. And Troy L. Right Triangles ***Works only for RIGHT triangles!! Hypotenuse- The longest ...

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Triangles & angles Algebra Section 3-4 Supplementary angles - Two angles are supplementary if the sum of their measure is 180. Complementary angles - Two angles are ...

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Advanced Geometry Triangle Congruence Lesson 1 Triangles & Congruence Classifying Triangles by Angles acute triangle all acute angles right triangle one right ...

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

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COURSE 2 LESSON 7-4 Triangles Find the value of x in the triangle. x + 78 + 56 = 180 x + 134 = 180 x + 134 134 = 180 134 x = 46

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TRIANGLES (There are three sides to every story!) Which triangle is Impossible? EQUIANGULAR OBTUSE SCALENE ISOSCELES RIGHT EQUILATERAL TRIANGLES (There are three ...

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Chapter 5 More Triangles. Mr. Thompson More Triangles. Mr. Thompson.

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Classifying Triangles & Angles of Triangles Sections 4-1 & 4-2 A triangle is the figure formed by 3 segments joining 3 noncollinear points. Each of the 3 points is a ...

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Congruent Triangles Section 4-3 CPCTC Defn. of Congruent Triangles Two triangles are congruent if and only if their corresponding parts are congruent Theorem 4-4 ...

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Classifying Triangles & Angles of Triangles Sections 4-1 & 4-2 A triangle is the figure formed by 3 segments joining 3 noncollinear points. Each of the 3 points is a ...

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Similar Triangles Section 6-3 AA Similarity If 2 angles of one triangle are congruent to 2 angles of another triangle, then the triangles are similar.

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Congruent Triangles 4-2B What are the four short cuts to prove triangles congruent? Congruent Triangles Do you really need six pairs of corresponding congruent parts ...

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Right Triangles 4-3B What are the additional congruence theorems used only for right triangles? Which combination of sides for triangles in general cannot be used but ...

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B A D E C F Altitude - Special Segment of Triangle Definition: The perpendicular segment from a vertex of the triangle to the segment that contains the opposite side.

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Triangles by Deb Kiley Butch Fitzgerald Sandymount Elementary School February 2005 First, Know Your Angles Acute less than 90 degrees Right exactly 90 degrees ...

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Angles and Triangles Terry Scates Newton, Kansas Closure/Summary Is the sum of the angles of an obtuse triangle greater than the sum of the angles of an acute triangle?

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Types of Triangles Scalene triangle Isosceles triangle Equilateral Triangle ... PowerPoint Presentation Author: MIKE CROWLEY Last modified by: Becky Created Date:

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Angles of Triangles Angle Sum Theorem The sum of the measures of the angles of a triangle is 180 degrees. Third Angle Theorem If two angles of one triangle are ...

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5-2 Bisectors of Triangles Warm Up Lesson Presentation Lesson Quiz Holt Geometry * * Warm Up 1. Draw a triangle and construct the bisector of one angle.

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Lesson 5-2 Inequalities and Triangles

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We make a living by what we get, but we make a life by what we give. -- Winston Churchill Special Right Triangles Chapter 8 Section 3 Learning Goal: Use properties of ...

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Angles of Triangles Chapter 4, Section 2 Angle Sum Theorem The sum of angles in a triangle is 180o. Examples: Find the missing angles: Third Angle Theorem If 2 angles ...

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Two Special Right Triangles Practice Problems Find the two missing sides for the triangles Y X 9 9 9 2 45 45 Find the two missing sides for the triangles Y X 8 2 ...

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The World Of Triangles Free powerpoints at http://www.worldofteaching.com

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Inequalities Involving Two Triangles SAS Inequality/Hinge Theorem If two sides of one triangle are congruent to two sides of another triangle and the included angle ...

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Solution of Triangles COSINE RULE Cosine Rule 2 sides and one included angle given. e.g. b = 10cm, c = 7 cm and A = 55 or, a = 14cm, b = 10 cm and ...

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Area of triangles What s the area of this rectangle? 10 cm 6 cm 60 cm2 What s the area of the red triangle? 10 cm 6 cm 30 cm2 Area of a triangle length height ...

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You measured and classified angles. Identify and classify triangles by ... steel construction ... by Angles PowerPoint Presentation PowerPoint ...

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Proving Triangles Congruent Geometry D Chapter 4.4 SSS - Postulate Example #1 SSS Postulate Definition Included Angle SAS - Postulate Example #2 ...

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Classifying Triangles Lesson One Unit Four Standards: G 1, 3.4 Bellringer Refer to the figure: Name a pair of consecutive interior angles. If m || AB, name a pair of ...

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Classifying Triangles by sides and angles Beat the Computer Drill Directions: When the appears, say BOTH NAMES for the type of triangle aloud before the ...

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8-2 Special Right Triangles Objective: To use the properties of 450-450-900 and 300-600-900 triangles Pythagorean Theorem Given a right triangle then _____ a b c a2 ...

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Lesson 5-5 Inequalities Involving Two Triangles 5-Minute Check on Lesson 5-4 Transparency 5-5 Determine whether the given measures can be the lengths of the sides of ...

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Angles, Degrees, and Special Triangles Trigonometry MATH 103 S. Rook Overview Section 1.1 in the textbook: Angles Degree measure Triangles Special Triangles * Angles ...

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Title: Thinking Problem: Area of Triangles Author: Suketu Gandhi Description: Area of triangle, rectangle, fraction Last modified by: Suketu Gandhi

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Similar Triangles Geometry Ms. Hough 7-3 Angle Angle Similarity If two angles of one triangle are congruent to two angles of another triangle, then the two triangles ...

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9.7 Special Right Triangles Objective: After studying this section, you will be able to identify the ratio of side lengths in a 30 -60 -90 triangle and in a 45 ...

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Classifying Triangles Joe Griggs Subject: Geometry Grade Level: 7th grade Two Ways to Classify Triangles By Their Sides By Their Angles Classifying Triangles By Their ...

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8-3 Solving Right Triangles Warm Up Lesson Presentation Lesson Quiz Holt Geometry Warm Up Use ABC for Exercises 1 3. 1. If a = 8 and b = 5, find c. 2.

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Similar Triangles Similar shapes Are Enlargements of each other Corresponding angles are equal Sides are related by the same scale factor Similar Triangles 50 50 ...

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Lesson 8.4 If we know that two triangles are congruent, we can use the definition of congruent triangles (CPCTC) to prove that pairs of angles and sides are congruent.

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Using Corresponding Parts of Congruent Triangles GEOMETRY LESSON 4-7 Overlapping triangles share part or all of one or more sides. Some triangle relationships are ...

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Special Triangles Click one of the buttons below or press the enter key TOPICS BACK NEXT EXIT 45 45 90 Triangle 30 60 90 Triangle Special ...

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Proving Triangles are Congruent ASA and AAS Chapter 4.5 Objectives: To use the ASA and AAS Theorem to prove that triangles are congruent ASA Theorem If two angles and ...

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Special Right Triangles Definition Special Right Triangles right triangles whose angle measures are 45 -45 -90 or 30 -60 -90 . What kind of triangle is this?

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Special Right Triangles EQ: How do you find the missing side lengths in special right triangles? M2 Unit 2: Day 1 HW: WB pg 166-167 (#1-14) Special Right Triangles EQ ...

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8.4 Similar Triangles Objectives/Assignment Identify similar triangles Assignment: 2-46 even Identifying Similar Triangles In this lesson, you will continue the study ...

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8-1 Similarity in Right Triangles One Key Term One Theorem Two Corollaries Theorem 8-1 Altitude Similarity Theorem The altitude to the hypotenuse of a right triangle ...

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Similar Triangles By: MA.7.5.1: Apply the concept of similarity to solve problems. Definition Similar triangles are triangles that have the same shape but not ...

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Area of Triangles Look at the following parallelogram. Look at the same parallelogram. The area of the triangle equals half of the area of the parallelogram.

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Section 4.4 Prove Triangles Congruent by SAS and HL Homework Pg 243 #9-14, 25-27, 36 (prove 36) Vocabulary Leg of a triangle the sides adjacent to the right angle ...

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Area of Parallelograms, ... Area = base times height Area = b h A = 5 in 4 in A = 20in2 The area of a triangle is the area of a parallelogram.

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Lesson 5-5: Inequalities in Triangles Angle-Side Relationship Think of two flashlights shining on a wall Can you make a triangle with any 3 sides?

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Similar Triangles * * * Identifying Similar Triangles In this lesson, you will continue the study of similar polygons by looking at the properties of similar triangles.

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