I made an error in my last post, I admit it! The 2 activities I had to do were area of minor and major segment, rather than sector. I had never done that before, however in these last 2 days, I have achieved my 100% on the minor segment one, and I am working my way through the one with the major segment. The way to calculate each one is rather similar; you use the formula:
0.5r^2(X-sinX) (where X is in radians) to calculate the area of the minor segment, and for the major segment, you subtract this value from the area of the whole circle. Thank goodness for the help section on Mathletics!
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