document.write( "Question 867350: Juan wants to test whether a 15-foot high flagpole is vertical (forms a right angle with the ground). He attaches two strings from a point on the ground to the opposite ends of the flagpole. Juan says since the measure of the short string is 8 feet and the long string is 17 feet, the flagpole is vertical. Is he correct? \n" ); document.write( "
Algebra.Com's Answer #522960 by mananth(16946)![]() ![]() You can put this solution on YOUR website! The string , the pole (if vertical) and the ground form right triangle\r \n" ); document.write( "\n" ); document.write( "the triangles have to comply with Pythagoras theorem\r \n" ); document.write( "\n" ); document.write( "the hypotenuse = 17 \n" ); document.write( "one leg = 8\r \n" ); document.write( "\n" ); document.write( "Check\r \n" ); document.write( "\n" ); document.write( "17^2= 289\r \n" ); document.write( "\n" ); document.write( "8^2+15^2=289\r \n" ); document.write( "\n" ); document.write( "LHS=RHS \n" ); document.write( "so the pole is vertical \n" ); document.write( " |