Question 1003842
the rectangle whose vertices are the points with coordinates:

 ({{{5}}},{{{2}}}),({{{5}}},{{{-6}}}),({{{0}}},{{{-6}}}),and ({{{0}}},{{{2}}})


{{{drawing( 600, 600, -10, 10, -10, 10,
circle(5,2,.12),circle(5,-6,.12), circle(0,-6,.12),circle(0,2,.12),
line(5,2,5,-6),line(5,2,0,2),line(0,-6,5,-6),
 graph( 600, 600, -10, 10, -10, 10, 0)) }}}


as you can see, the length of the rectangle is the distance between the points ({{{0}}},{{{2}}}) and ({{{0}}},{{{-6}}})

and the width is the distance between the points ({{{0}}},{{{2}}}) and ({{{5}}},{{{2}}})

the length {{{L}}} is: 

*[invoke hummingbird_distance_2D 0, 2, 0, -6]


the width is {{{W}}}:

 *[invoke hummingbird_distance_2D 0, 2, 5, 2]

{{{L=8}}}
{{{W=5}}}

so, the area is:{{{A=LW}}}=>{{{A=8*5}}}=>{{{A=40}}}