Question 1193341


 

{{{AC}}} and {{{BD}}} are the diagonals; the diagonals of an isosceles trapezoid are {{{congruent}}}.

{{{AC = BD }}}

if  {{{BD=15.2}}}, then {{{AC=15.2}}}


and, if {{{AC=3(x + 7)}}} and {{{BD=8(x-6)}}}, then

{{{3(x + 7) = 8(x-6)}}}

{{{3x + 21 = 8x -48}}}

{{{48 + 21 = 8x -3x}}}

{{{69 = 5x}}}

{{{x=69/5}}}

{{{x=13.8}}}