Question Number 64968 by ajfour last updated on 23/Jul/19
Commented by ajfour last updated on 25/Jul/19
$${Instead}\:{let}\:\:{y}={Ax}^{\mathrm{2}} \:,\:{find}\:{side} \\ $$$${length}\:{of}\:{such}\:{a}\:{rhombus}\:{that} \\ $$$${fits}\:{in},\:{the}\:{way}\:{shown}.\:{Also} \\ $$$${find}\:{A}.\:\:\:\:\:\:\: \\ $$