The value of 054x dx\displaystyle {\int_{{{0}}}^{{{5}}}}{4}{x}\ {\left.{d}{x}\right.} is the same as the area of a .

Finding the appropriate dimensions gives 054x dx=\displaystyle {\int_{{{0}}}^{{{5}}}}{4}{x}\ {\left.{d}{x}\right.}=  

The value of 0114x dx\displaystyle {\int_{{{0}}}^{{{11}}}}{4}{x}\ {\left.{d}{x}\right.} is the same as the area of a .

Finding the appropriate dimensions gives 0114x dx=\displaystyle {\int_{{{0}}}^{{{11}}}}{4}{x}\ {\left.{d}{x}\right.}=  

The value of 5114x dx\displaystyle {\int_{{{5}}}^{{{11}}}}{4}{x}\ {\left.{d}{x}\right.} is the same as the area of a .

Using the previous results gives 5114x dx\displaystyle {\int_{{{5}}}^{{{11}}}}{4}{x}\ {\left.{d}{x}\right.} =