lesson 4.1 4.1 handout #1-49 (odd). special right triangles and trigonometric ratios objective to...
TRANSCRIPT
Lesson 4.1
4.1 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.
a2 + b2 = c2
Trigonometry - is the study of the relationships between the sides and the angles of triangles.
