'Equiangular triangle' diaporamas de présentation

1.1 Statements and Reasoning

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Unit Quiz

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4-1

4-1. Classifying Triangles. Holt Geometry. Warm Up. Lesson Presentation. Lesson Quiz. Warm Up 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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Warm Up

Pre-Algebra. Warm Up. 1. Find the perimeter of a rectangle with side lengths 12 ft and 20 ft. 64 ft. 2. Find the area of a rectangle with side lengths 24 in. and 32 in. 768 in 2. 3. Find the area of a parallelogram with height 9 in. and base length 15 in. 135 in 2. Exploring

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What is Trigonometry?

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Lesson 4-1

Lesson 4-1. Classifying Triangles. Transparency 4-1. 5-Minute Check on Chapter 3. Refer to the figure. 1. What is the special name given to the pair of angles shown by ? 2 and ? 6? 2. Find m ? 3. 3. Find m ? 4 . 4. Find the slope of the line that contains the points at (4, 4) and

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Triangles

Triangles. Sides and Angles. Triangles .

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4.1 Triangles and Angles

4.1 Triangles and Angles. Objectives/Assignments. Classify triangles by their sides and angles Find angle measures in triangles Assignment: 2-26 even, 32-38 even. Goal 1: Classifying Triangles. A triangle is a figure formed by three segments joining three noncollinear points.

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Polygon Information

Polygon Information. Triangle Information. Consider this pattern: 30+60+90=180 45+45+90=180 40+50+90=180 10+80+90=180 Based on this, what can you say about the acute angles in a right triangle?. Try it!. Make a conjecture about the angles in an equiangular triangle. Triangle Theorem.

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4.6 The Isosceles Triangle Theorems

4.6 The Isosceles Triangle Theorems. Base Angles and Opposite Sides Hypotenuse - Leg. Parts of an Isosceles Triangle. Isosceles Triangle Theorem. If two sides of a triangle are congruent, then the angles opposite those sides are congruent. . Isosceles Triangle Theorem.

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Isosceles Triangles

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Isosceles and Equilateral Triangles

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The Isosceles Triangle Theorems

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Scalene triangle

Scalene triangle. No sides congruent. Isosceles triangle. Two sides equal. Equilateral triangle. All sides equal. Acute triangle. All angles less than 90. Right triangle. Exactly one right angle. Obtuse triangle. Exactly one angle greater then 90. Equiangular triangle.

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4-1 and 4-2

4-1 and 4-2. Classifying Triangles Angle Relationships in Triangles. Classify Triangles By Angles. Classify Triangles By Sides. Classify each triangle by angles and sides. 6. A. 8. 11. 10. ? NSE ? ANE ? AEK ? ASK ? AES. N. 115?. 12. 5.1. 25?. 40?. 70?. S. E. K.

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Aim:

Aim:. C. B. A. D. P. 2) Which of the following shapes are polygons ?. c). b). a). e). f). d). What are polygons? How do we classify triangles?. Do Now:. All angles and all sides of a regular polygon are equal in measure.

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Classifying Triangles

Classifying Triangles. By Sides By Angles. Triangles Classified by Sides. Scalene triangle: A scalene triangle is a triangle that has no equal sides. The following is a scalene triangle. . Triangles Classified by Sides.

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Geometry

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Section 4.1

Section 4.1. Exploring Congruent triangles. Definition of Congruent Triangles. If ? ABC is congruent to ? PQR, then there is both an angle and side correspondence. Corresponding sides: AB ? PQ BC? QR CA? RP. Corresponding angles are: <A ? <P <B ? <Q <C ? <R. ?ABC? ?PQR.

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Triangles

Triangles. Matt Williams. The Definition of a Triangle. A figure formed by connecting three non-collinear points. A triangle has three sides and three angles. The sum of all the angles equals 180 degrees.

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