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)![]() ![]() 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 \n" ); document.write( " \n" ); document.write( " |