'Angle sum theorem' presentation slideshows

Unit 4

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Triangles and Congruence

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Chapter 5

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Law of Sines and Law of Cosines Examples / Practice

Law of Sines and Law of Cosines Examples / Practice. Example 6-1a. Find p. Round to the nearest tenth. to the nearest degree in ,. Example 6-1c. Law of Sines. Cross products. Divide each side by 7. Answer:. Answer:. Example 6-1e. a. Find c .

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7.6 Law of Sines

7.6 Law of Sines. Objective. Use the Law of Sines to solve triangles and problems. A. c. b. B. C. a. Law of Sines. In trigonometry, we can use the Law of Sines to find missing parts of triangles that are not right triangles.

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6-1 Angles of Polygons

6-1 Angles of Polygons. You named and classified polygons. Find and use the sum of the measures of the interior angles of a polygon. Find and use the sum of the measures of the exterior angles of a polygon. Definitions.

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5-Minute Check on Lesson 4-1

Transparency 4-2. 5-Minute Check on Lesson 4-1. Refer to the figure. 1. Classify ? RST as acute, equiangular, obtuse, or right. 2. Find y if ? RST is an isosceles triangle with RS ? RT . Refer to the figure. 3. Find x if ? ABC is an equilateral triangle.

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The Polygon Angle-Sum Theorems

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Chapter 4 Sections 1 and 2

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Lesson 4-2

Lesson 4-2. Angles of Triangles. Transparency 4-2. 5-Minute Check on Lesson 4-1. Refer to the figure. 1. Classify ? RST as acute, equiangular, obtuse, or right. 2. Find y if ? RST is an isosceles triangle with RS ? RT . Refer to the figure.

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3.4: The Polygon Angle-Sum Theorem

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3.4: The Polygon Angle-Sum Theorem

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Basics of Euclidean Geometry

Basics of Euclidean Geometry . Point Line Number line Segment Ray Plane Coordinate plane. One letter names a point Two letters names a line, segment, or ray (or small script) Three letters names a plane (or capital script ) Collinear vs. Coplanar Segment addition

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Tricky Triangle!

Warm UP!. 10 minutes. Tricky Triangle! Shade in all multiples of 5. At the bottom of your activity sheet given a brief description of the pattern you see. 4.2 Congruence and Triangles. Objective: Identify congruent figures and corresponding parts. Congruent Figures. (. B. A. ___. ___

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Chapter 5 Section 4

Chapter 5 Section 4. Inequalities for Sides and Angles of a triangle. Warm-Up. Determine whether triangle STU is congruent to triangle VUT, using the given information. Justify. 1) <S is congruent to <V 2) SU is congruent to VT 3) <STU and <VUT are right angles

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Classifying Triangles & Angles of Triangles

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Copy these into your Glossary

"It's okay to make mistakes. Mistakes are our teachers -- they help us to learn." John Bradshaw. Copy these into your Glossary. X. Y. Y. W. X. F. S. A. D. E. B. C. P. G. H. J. Acute.

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Identifying Congruent Triangles

Identifying Congruent Triangles. OBJECTIVES. - Triangle classification by parts - Angle Sum Theorem & Exterior Angle Theorem - CPTC,SSS,SAS,ASA,and AAS Theorems - Problem solving by eliminating possibilities -Equilateral & Isosceles triangles. By side lengths Equilateral ? 3 sides

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?Chapter 4 Review? Congruent Triangles

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4.2 Angles of Triangles

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