document.write( "Question 279400: I need to find the perimeter of a right triangle that has a height of 9 and hypotenuse of 15. Please advise. Thank you. \n" ); document.write( "
Algebra.Com's Answer #203146 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
Not hypertense but hypotenuse
\n" ); document.write( "A triangle has three sides. We know two of them.
\n" ); document.write( "How do we find the third side of a right triangle?
\n" ); document.write( "a^2+b^2+c^2
\n" ); document.write( "where c is the hypotenuse and a and b are the legs.
\n" ); document.write( "a+b+c=perimeter
\n" ); document.write( "so first we need to find the missing side.
\n" ); document.write( "a^2+9^2=15^2
\n" ); document.write( "a^2+81=225
\n" ); document.write( "a^2=144
\n" ); document.write( "a=12\r
\n" ); document.write( "\n" ); document.write( "We could also have deduced the third side since this is a multiple of the classic triplet right triangle 3, 4,5
\n" ); document.write( "3*3=9
\n" ); document.write( "3*4=12
\n" ); document.write( "3*5=15
\n" ); document.write( "So now you have the three sides.
\n" ); document.write( "You still need to add them together to get the perimeter\r
\n" ); document.write( "\n" ); document.write( "a+b+c=perimeter
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