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SOH CAH TOA. By: Corinne Fahs. Purpose. The purpose of this PowerPoint is to help with the understanding of trigonometry by the use of SOH CAH TOA. The formula is presented in words, and also with variables. The variables are then substituted with actual variables based off a given triangle.

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Presentation Transcript
soh cah toa

SOH CAH TOA

By: Corinne Fahs

purpose
Purpose
  • The purpose of this PowerPoint is to help with the understanding of trigonometry by the use of SOH CAH TOA.
  • The formula is presented in words, and also with variables. The variables are then substituted with actual variables based off a given triangle.
  • Practice questions are then given.
slide3
SOH
  • SOH stands for Sin, Opposite, Hypotenuse.
  • Sin of the angle is equal to opposite over hypotenuse. >> SinX=O/H
  • Using the triangle below the formula would

be SinA=a/c

slide4
CAH
  • CAH stands for Cos, Adjacent, Hypotenuse.
  • Cos of the angle is equal to adjacent over hypotenuse. >> CosX=A/H
  • Using the triangle below the formula would

be CosA=b/c

slide5
TOA
  • TOA stands for Tan, Opposite, Adjacent.
  • Tan of the angle is equal to the opposite over the adjacent. >> TanX=O/A
  • Using the triangle below the formula would

be TanA=a/b

practice
Practice
  • 1. Given that a= 3 and b=4. What is the value of angle A?
  • 2. Given that a=2 and c=4. What is the value of angle A?
  • 3. Given that b=5 and c=8. What is the value

of angle B?

answers
Answers
  • 1. 36.87° Tan^-1(3/4)= 36.87
  • 2. 30° Exp: Sin^-1(2/4)= 30
  • 3. 51.32° Exp: Cos^-1(5/8)=51.32

°

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