Question 7893
You have the right idea, yet you said that they have have consecutive Odd numbers, so you would use Odd number (1,3,5...).  
The Perimeter formula of a Triangle is {{{P=S1+S2+S3}}}
side 1 = x
Side 2 = x+1
Side 3 = x+3

{{{29=x+x+1+x+3}}}
{{{29=3x+4}}}
{{{25=3x}}}
{{{8&1/3}}}
This answer will not give you an even answer