geometry
posted by Natalie .
If the area of Triangle T, sides 5,12, and 13 equals the area of rectangle R, width 3, then what is the perimeter of rectangle R?

geometry 
Reiny
your triangle is rightangled, since
3^2+5^2=13^2
so the area is 30
so rectangle R is length x width = 30
3length = 30
length = 10
so its perimeter is 2(10+3) = 26 
geometry 
Anonymous
Where did you get 3^2 from?

geometry 
Reiny
I really don't know, lol, must be senility
of course I meant
5^2 + 12^2 = 13^2
the rest is still correct. 
geometry 
Natalie
Lol, okay. Thank you very much !
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