document.write( "Question 60452: If a book is 80 square inches How many 1x1x1 centimeter trianles wwould it take to cover the book? Each side of the triangle is 1 centimeter and 2.54 centimeters equal one inch. \n" ); document.write( "
Algebra.Com's Answer #44429 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! EACH TRINGLE HAS AN AREA OF \n" ); document.write( "1/2B*H OR .5*1*H AND THE HEIGHT IS FOUND BY THE PATHAGORIAN THE0REM A^2+B^2=C^2. \n" ); document.write( "WE HAVE C=1 & B=.5 NOW WE SOLVE FOR A \n" ); document.write( "A^2+.5^2=1^2 \n" ); document.write( "A^2+.25=1 \n" ); document.write( "A^2=1-.25 \n" ); document.write( "A^2=.75 NOW WE CALCULATE THE SQUARE ROOT OF BOTH SIDES & WE GET \n" ); document.write( "A=.866 FOR THE HEIGHT. NOW WE CAN CALCULATE THE AREA OF EACH TRIANGLE IN CMs. \n" ); document.write( "AREA=.5*1*.866 \n" ); document.write( "AREA=.433 SQUARE CMs. \n" ); document.write( "NOW WE CAN CONVERT THE SIZE OF THW BOOK IN INCHES TO CM OR CONVERT THE TRIANGLE IN CMs TO INCHES. LETS CONVERT THE 80 SQ. INCHES TO CMs. \n" ); document.write( "80*2.54=203.2 SQ CMs. \n" ); document.write( "NOW WE DIVIDE THE BOOK AREA BY THE SIZE OF THE TRIANGLE THUS \n" ); document.write( "203.2/.433=469.284 TRIANGLES WOULD COVER THE BOOK.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |