'Triangle angle sum theorem' diaporamas de présentation

4-1

4-1. Classifying Triangles. Holt Geometry. Warm Up. Lesson Presentation. Lesson Quiz. Do Now Classify each angle as acute, obtuse, or right. 1. 2. 3. 4. If the perimeter is 47, find x and the lengths of the three sides. right. acute. obtuse. x = 5; 8; 16; 23. Objectives.

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CHAPTER 2

CHAPTER 2. By John Cobb. Lesson 1: Conditional Statements. Conditional Statement. If p , then q. Hypothesis The 'if' clause. Conclusion The 'then' clause. Lesson 1: Conditional Statements. If you give a mouse a cookie, then he's going to want some milk

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Constructing Triangles

Constructing Triangles. Common Core 7.G.2. Vocabulary. Uniquely defined Ambiguously defined Nonexistent. Triangle Inequality Theorem. The sum of the lengths of any two sides of a triangle is greater than the length of the third side. . z. x. y. Practice.

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Constructing Triangles

Constructing Triangles. Common Core 7.G.2. Vocabulary. Uniquely defined Ambiguously defined Nonexistent. Triangle Inequality Theorem. The sum of the lengths of any two sides of a triangle is greater than the length of the third side. . z. x. y. Practice.

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8-6 The Law of S ines and Law of Cosines

8-6 The Law of S ines and Law of Cosines. You used trigonometric ratios to solve right triangles. Use the Law of Sines to solve triangles. Use the Law of Cosines to solve triangles. Law of Sines.

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Inverses, Contrapositives, and Indirect Reasoning

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Warm-Up : EOC Review

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Special Parallelograms

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Bellringer

Bellringer. Find the slope going through the points. Use the given information to write an equation for each line. 1. 2. (2, 3), ( ? 1, ? 6) 1. m=-2/3 2.m=3. 3. slope ?1/3 , y-intercept ? 2 4. 3. y=-1/3x-2 4.y=-3/2x+2. Geometry: Chapter 3 Parallel and Perpendicular lines.

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DO NOW

DO NOW. 30 + 90 + X = 180 55 + X + 105 = 180 X + 58 = 90 31 + X = 90. Triangles, Triangles, and MORE Triangles. Geometry Week 7 of 9 Unit 2: Angles and Angle Relationships. Standards & Objectives. Standard 12.0 and 13.0 Objectives:

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2.9 warm-up

2.9 warm-up. When six students and two adults saw a movie, the total ticket cost was $50. Adult tickets cost twice as much as student tickets. Which number sentence best represents the situation ? a. x+2x=50x b. 6x+2=50 c. 6x+2( x / 2 )=50 d. 6x+2(2x)=50. 10. 2.9 warm-up.

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Objectives: Classify Polygons

Section 3-4 Polygon Angle-Sum Theorem SPI 32A: Identify properties of plane figures from information given in a diagram. Objectives: Classify Polygons Find the sums of the measures of the interior and exterior angle of polygons. Polygon:

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Section 3-3: Parallel Lines and Triangle Angle-Sum Theorem

Section 3-3: Parallel Lines and Triangle Angle-Sum Theorem. Goal 2.03 Apply properties, definitions, and theorems of two-dimensional figures to solve problems and write proofs: a) Triangles. Essential Question. How is the Triangle Exterior Angle Theorem applied?.

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Objectives: Use relationships between a radius and a tangent

Section 11-1 Tangent Lines SPI 32B: Identify chords of circles given a diagram SPI 33A: Solve problems involving the properties of arcs, tangents, chords. Objectives: Use relationships between a radius and a tangent. Tangent to a Circle

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Section 6.4 AA Similarity

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3.5 Parallel Lines and Triangles

3.5 Parallel Lines and Triangles. Parallel Postulate Through a point not on a line, there is one and only one line parallel to the given line. Triangle Angle-Sum Theorem. The sum of the measures of the angles of a triangle is 180. Using the Triangle Angle-Sum Theorem.

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Triangle Angle Sum Theorem, Triangle Exterior Angle Theorem

Triangle Angle Sum Theorem, Triangle Exterior Angle Theorem. Objectives State the triangle angle sum theorem and solve for an unknown angle in a triangle Classify triangles based on measures of angles as well sides

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Triangle Angle Sum Theorem, Triangle Exterior Angle Theorem

Triangle Angle Sum Theorem, Triangle Exterior Angle Theorem. Objectives State the triangle angle sum theorem and solve for an unknown angle in a triangle Classify triangles based on measures of angles as well sides

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XYZW is an isosceles trapezoid, and m ? X = 156. Find m ? Y , m ? Z , and m ? W .

m ? X + m ? W = 180. Two angles that share a leg of a trapezoid are supplementary. 156 + m ? W = 180. Substitute. m ? W = 24. Subtract 156 from each side. Trapezoids and Kites. LESSON 6-5. Additional Examples.

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XYZW is an isosceles trapezoid, and m ? X = 156. Find m ? Y , m ? Z , and m ? W .

m ? X + m ? W = 180. Two angles that share a leg of a trapezoid are supplementary. 156 + m ? W = 180. Substitute. m ? W = 24. Subtract 156 from each side. Trapezoids and Kites. LESSON 6-5. Additional Examples.

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