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Question 1
Find the area of the figure pictured below.

[Graphs generated by this script: initPicture(-2,14,-2,14);path([[0,0],[0,8],[3,8],[3,4],[9,4],[9,0],[0,0]]);text([0,4],'8','left');text([1.5,8],'3','above');text([9,2],'4','right');text([4.5,0],'9','below');]

Area =  

X
MathQuill
   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
[more..]