document.write( "Question 854337: n a right triangle, if one angle is 45 degrees and the hypotenuse is 12cm long, how long are the other sides of the triangle?
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Algebra.Com's Answer #514631 by chndnbl(31)![]() ![]() You can put this solution on YOUR website! Draw a right angle triangle ABC. \n" ); document.write( "Angle B=90* \n" ); document.write( "angle A=45* \n" ); document.write( "Angle C = 180 - (90+ 45) \n" ); document.write( "angle C = 45* \n" ); document.write( "since angle A=angle C= 45* \n" ); document.write( "therefore triangle ABC is a isocesles triangle, \n" ); document.write( "let hypotenuse BC=12 cm \n" ); document.write( "let other two sides be equal:AB=AC=x \n" ); document.write( "by using pythagoras theorem, \n" ); document.write( "BC^2 = AB^2 + AC^2 \n" ); document.write( "12^2 = x^2 + x^2 \n" ); document.write( "144 = 2 x^2 \n" ); document.write( "x^2 =144/2 \n" ); document.write( "x^2 = 72 \n" ); document.write( "take a square root of 72. Then u wil get the vale of x=8.5 cm \n" ); document.write( " |