To calculate the sector area, first calculate what fraction of a full turn the angle is. Calculate the area of this sector which has a 60° angle to one decimal place. 60° is one sixth of a full turn ...

To calculate the sector area, first find what fraction of the whole circle we have. Calculate the area of this sector which has a 60° angle to one decimal place. 60° is one sixth of a full turn (360°) ...

I'm reading Randall Munroe's book How To: Absurd Scientific Advice for Common Real-World Problems. I probably don't have to tell you this, but it's awesome (as is everything from Randall Munroe, the ...