Answer :

apologiabiology
isocolees means that 2 sides are equalegnth

side+side+base=perimiter=100
side is 5 more than base
s=5+b
s+s+b=100
5+b+5+b+b=100
3b+10=100
minus 10 from both sides
3b=90
divide both sides by 3
b=30
s=5+b
s=5+30
s=35

the legnsh are
35in ,35in ,30in

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