document.write( "Question 25367: two observers, 215 ft apart, are directly in line with a hot-air balloon. The angeles of elevation of the balloon are 43 degrees and 57 degrees. How high is the balloon? \n" ); document.write( "
Algebra.Com's Answer #13594 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! SInce its, 2 degrees and 1 length. You must apply the sin Law to this. You can not use the Cosine law.\r \n" ); document.write( "\n" ); document.write( "Let the unknown be θ\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "θ/sin42=215/sin57 \n" ); document.write( "θ=215sin42/sin57 \n" ); document.write( "θ=174\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence the height of the balloon is 174ft. \n" ); document.write( "Paul. \n" ); document.write( " |