Lesson 4.1 4.1 Handout #1-49 (ODD). Special Right Triangles and Trigonometric Ratios Objective To understand the Pythagorean Theorem, discover relationships.

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Presentation transcript:

Lesson Handout #1-49 (ODD)

Special Right Triangles and Trigonometric Ratios Objective To understand the Pythagorean Theorem, discover relationships among the lengths of the sides of a 45°- 45°- 90° triangle and a 30°- 60°- 90° triangle, and to encounter trigonometry and discover the 6 trigonometric ratios.

You tell me… What do you remember about triangles? Sum of angles! Isosceles Triangles! Triangle Inequalities! Special Right Triangles!

Hypotenuse - in a right triangle, the side opposite the right angle. Legs - the two sides that form the right angle.

a 2 + b 2 = c 2

Trigonometry - is the study of the relationships between the sides and the angles of triangles.