Question 366951
{{{A=(1/2)bh=42.5}}}
{{{(1/2)b(4b-3)=42.5}}}
{{{4b^2-3b=85}}}
{{{4b^2-3b-85=0}}}
{{{4b+17)(b-5)=0}}}
Two solutions but only one is positive.
{{{b-5=0}}}
{{{highlight(b=5)}}}cm
.
.
{{{h=4(5)-3}}}
{{{highlight(h=17)}}}cm