Question 110821
x, x+2, x+4 are the 3 sides.
x+x+2+x+4=105
3x+6=105
3x=99
x=a=33, b=35 c=37
s=(a+b+c)/2
s=(33+35+37)/2
s=105/2=52.5
Heron's area formula: {{{A=sqrt(s(s-a)(s-b)(s-c))}}}
{{{A=sqrt(52.5(52.5-33)(52.5-35)(52.5-37))}}}
{{{A=sqrt(52.5(19.5)(17.5)(15.5))}}}
A=sqrt(277692)
A=562.965 
Ed