Diana49 Diana49

14-04-2016
Mathematics

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Which is the best approximation of the perimeter of a right isosceles triangle if it's hypotenuse is 12 units long

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apologiabiology apologiabiology

14-04-2016

ok so isocileese
that means that the 2 legs are eual

a^2+b^2=c^2
a=b
c=12
2a^2=12^2
2a^2=144
divide 2
a^2=72
a=6√2

perimiter=a+b+c
a=b
P=6√2+6√2+12
P=12√2+12
P=aprox 28.97 units

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