Real Number Whole Numbers:0,1,2,3,4,5,6,7,8,9,10,etc. Counting Numbers:1,2,3,4,5,6,7,8,etc. Natural Numbers:which is whole or counting numbers depends on the topic Integers:-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,etc.
84*66 for the rectangle and since there is two semi circles you could just calculate it as one so it would be 84*66+33*33*3.14 because formula for area of circle is A= pi*raduis with exponant of 2
