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Preface

 

  “Sine of an acute angle in a right triangle is the ratio of the opposite side to the hypotenuse. Let’s examine the properties of sine.”

Stop! Stop!! What a strange definition?! Where did it come from? Why do we need to study some sine? Is it only to pass an exam?  ... More

 
     
Contents  
  Lesson 1: Protect your nose, study trigonometry
Lesson 2: It is a duty of every triangle to live by the laws of sine and cosine
Lesson 3: Angles – acute, properties – cute   ...More
 
     
Extracts from Chapters  
  Lesson 1: Protect your nose, study trigonometry!
Lesson 2: It is a duty of every triangle to live by the laws of sine and cosine
Lesson 8: Alien measure of angles or the mystery of agent 0.017   ...More

 
 

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