<PRE><B>Question 757738</B>
P=a+b+c
Lets x to be small side of triangle. then two long ones is x times 3

84=3x+3x+x
84=7x
x=84/7
x=12 short side.
then
12 times 3 = 36 is long side . The same as second long.
36+36=72
84-72=12
p=a+b+c
84=36+36+12
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