Question 986979
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a=one leg=8ft; b=other leg=15ft; c=hypotenuse
Use Pythagorean Theorem to find length of hypotenuse.
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{{{c^2=a^2+b^2}}}
{{{c=sqrt(a^2+b^2)}}}
{{{c=sqrt(8^2+15^2)}}}
{{{c=sqrt(64+225)}}}
{{{c=sqrt(289)}}}
{{{c=17ft}}}
The third side is 17 feet.
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Distance around plot (perimeter):
Perimeter=a+b+c
Perimeter=8ft+15ft+17ft
Perimeter=40ft
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ANSWER: Jo will need 40 feet of fencing.