Question 12101
A=h({{{(b+b)/2)}}})
224{{{m^2}}}=16m({{{(20m+b)/2)}}}) divide both sides by 16m
{{{(224m^2)/16m}}}={{{(16m/16m)}}}({{{(20m+b)/2)}}})
14m=({{{(20m+b)/2)}}})
14m=10m+{{{b/2}}} subtract 10m from both sides
14m-10m=10m+{{{b/2}}}-10m
4m={{{b/2}}}  multiply both sides by 2
(4m)(2)={{{b/2}}}(2)
8m=b



The length of the other base is 8 meters