document.write( "Question 549418: a rectangle has sides with a length of 5cm and 12 cm. what is the length of the digaonal of the rectangle \n" ); document.write( "
Algebra.Com's Answer #357737 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! A rectangle has 4 90-degree angles, so you can apply the Pythagorean Theorem to find the diagonal. \n" ); document.write( "c^2 = a^2 + b^2 \n" ); document.write( "a = 5 cm \n" ); document.write( "b = 12 cm \n" ); document.write( ". \n" ); document.write( "c^2 = 25 + 144 = 169 cm^2 \n" ); document.write( ". \n" ); document.write( "c = sqrt (169) = + or - 13 cm \n" ); document.write( ". \n" ); document.write( "A negative diagonal is spurious, so we can say: \n" ); document.write( ". \n" ); document.write( "Diagonal = 13 cm. \n" ); document.write( ". \n" ); document.write( "Done. \n" ); document.write( " |