LINEAR CALCULATOR

AREA CALCULATOR in centimeters, I don't know if it makes a difference

PYTHAGOREAN: The Square of the Hypotenuese is equal to the square of the other two sides or a²+b²=c²

CHORD/CIRCUMFERENCE CALC by Jeff LeMieux (this guy is good!).

ANGLES IN A POLYGON

AREA OF REGULAR N-SIDED POLYGON

VOLUMES