Question 471890
{{{Area= (1/2) b h}}}...........area is half of product of the base {{{b}}} and height {{{h}}}  

if {{{Base=b= 5x^3/7 }}} and  {{{Height=h= 4/x }}}...plug it in {{{Area= (1/2) b h}}}

{{{Area= (1/2)(5x^3/7)( 4/x)}}}


{{{Area=(5x^3*4)/(2*7*x)}}}


{{{Area=(20x^3)/(14x)}}}


{{{Area=(cross(20)10x^cross(3)^2)/(cross(14)7cross(x))}}}


{{{Area=(10x^2)/7}}}