Angle Measurement

Line AC is the initial side and line AB is the terminal side.
D represents the angle and it is the distance from the initial side to the terminal side.
This distance is measured in degrees using the symbol   ^o  or in radians.
A straight angle equals 180^o or π radians. Therefore:  

• 180^o  = π radians
  
• 90^o  = 180^o/2  = ? radians   answer
  
• 60^o  = 180^o/3  = ? radians  answer
  
• 45^o  = 180^o/4  = ? radians  answer
  
• 30^o  = 180^o/6  = ? radians  answer
  
• 27^o  = ? radians  answer
  
• 43.5^o  = ? radians  answer
  
• How do you convert radiants to degrees?  Study the 43.5^o change to radians and try
  to reverse the process.   Then change 1.3 radians to degrees.  answer
  
  
• 2.7 radians = ? degrees  answer
  

Angle Measurement    next

return