document.write( "Question 805683: A building casts a 20ft shadow at the same time a person who is 5'3 casts a 10ft shadow. How tall is the building? \n" ); document.write( "
Algebra.Com's Answer #485445 by mananth(16946)![]() ![]() You can put this solution on YOUR website! This is based on similarity of triangles\r \n" ); document.write( "\n" ); document.write( "x/20 = 5' 3\" /10\r \n" ); document.write( "\n" ); document.write( "x= (20*21/4 )/10\r \n" ); document.write( "\n" ); document.write( "x= 5*21/10\r \n" ); document.write( "\n" ); document.write( "x=10.5 feet\r \n" ); document.write( "\n" ); document.write( "10' 6\" \n" ); document.write( " |