document.write( "Question 724116: Calvin is swimming in a Lake when he spots two crcodiles. He tells you that his distance to crocodile A is 30 meters, the distance between the two crocodiles is 20 meters, the angle at Calvin is 58'?
\n" ); document.write( "a.) Show Calvin that he must have a mistake in measurement.
\n" ); document.write( "b.) Find the two possible distances between Calvin and Crocodile B using the angle 28'.
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #443594 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
Law of Sines is a key.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "A and B are points of each crocodile. AB is 20, Calvin-to-A is 30. If angle at Calvin is 58 degrees, then $\"sin%28B%29%2F30=sin%2858%29%2F20\"$ , which makes $\"sin%28B%29=%283%2F2%29%2A0.848\"$ , $\"sin%28B%29=2.968\"$ , IMPOSSIBLE. So one of the measurements must be wrong. Sine of an angle must be between -1 and +1. \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Either distance to A must be less, or distance AB must be more, or the angle at Calvin must be less. That all was for part (a). \n" ); document.write( "

\n" );