Find area of △ABC. plz asap due by 12

(m+11n)^2=(m+11n)(m+11n)=m^2+11mn+11mn+121n^2=m^2+22mn×121n^2 for example; use foil: (a+b)(a+b)first. a^2outside. abinside. ablast. b^2

If the area of a right triangle is 336ft squared, and the area of one leg is 2304ft squared (leg b is shorter) what are the other sides of the triangle? i need to look for sides a and c