'Right triangle measures' presentation slideshows

Welcome Geometry!

Welcome Geometry!. Take out your homework Take out your whiteboard and whiteboard pens. Take out a piece of paper and title it: 4.2: Angle Relationships in Triangles . Transformation Test . A: 28-31 B: 25- 27.5 C: 22-24.5 . Test Corrections.

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4-2

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You will be able to find the measures of interior and exterior angles of triangles.

Objectives. You will be able to find the measures of interior and exterior angles of triangles. You will be able to apply theorems about the interior and exterior angles of triangles. An auxiliary line is a line that is added to a figure to aid in a proof.

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Review

Review. Pythagorean Theorem. What is it used for? What is the formula?. Pythagorean Theorem. A triangle has a side of 12 units and a hypotenuse of 15 units. What is the length of the other side? . Pythagorean Practice.

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4.2 Angle Relationships in Triangles

4.2 Angle Relationships in Triangles. Triangle Sum Theorem. Examples:. After an accident, the positions of cars are measured by law enforcement to investigate the collision. Use the diagram drawn from the information collected to find m? XYZ. Examples:.

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The Pythagorean Theorem

The Pythagorean Theorem. Objectives. The objective of this lesson is for you to learn and apply the Pythagorean Theorem -- an important relationship between the three sides of a right triangle. The Theorem. O ne of the most important and fundamental theorems in all of mathematics

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Aim:

Aim:. B. z. x. Given:. D. E. y. Prove:. A. C. What is the sum of angle measures in a triangle?. Do Now:. Given. Def. straight angle. Partition Postulate. Substitution Post. Substitution Post. B. F. (((. (((. )). )). (. (. C. A. G. E. B. C. A. Theorem #19:.

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Pg. 362 Homework

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