Download CHIEF SOH CAH TOA sin( ) = cos( ) = tan( )

Geometry
Mr. Ed
Name: _________________________
Date: ______
Period: ______
CHAPTER 7: TRIGONOMETRY
Chapter 7 Introduction
TODAY’S GOAL: I will be able to…

UNDERSTAND the sine, cosine, and tangent ratios of trigonometry.
NERD WORDS
1.) TRIGONOMETRY: The mathematical subject that comes from the Greek words
Meaning ________ _______________.
2.) HYPOTENUSE: The __________ of a right triangle that is opposite of a __________.
3.) OPPOSITE SIDE: The _____ of a right triangle that is ____________ of the angle in
question.
4.) ADJACENT SIDE: The _____ of a right triangle that is ____________ of the angle
in question .
CHIEF SOH CAH TOA
The Sine of angle 𝜃
sin(𝜃) =
The Cosine of angle 𝜃
cos(𝜃) =
The Tangent of angle 𝜃
tan(𝜃) =
PRACTICE
̅̅̅̅ is the ____________.
1.) 𝐵𝐴
2.) Which segment is opposite of ∠𝐴?
3.) Which segment is opposite of ∠𝐵?
4.) Which segment is adjacent to ∠𝐴?
5.) Which segment is adjacent to ∠𝐵?
LET a=6 cm, b=8 cm, and c=10 cm.
6.) What is sin 𝐴?
7.) What is cos 𝐴?
8.) What is tan 𝐴?
9.) What is sin 𝐵?
10.) What is cos 𝐵?
11.) What is tan 𝐵?
12.) What is the perimeter of ∆𝐴𝐵𝐶?
13.) What is the area of ∆𝐴𝐵𝐶?