  var input = require( 'fs' ).readFileSync( '/dev/stdin' ).toString();
  var data = input.split( " " ).map( Number );
  var a = data[0];
  var b = data[1];
  var C = data[2]*(Math.PI/180);
   
  var h = Math.sin( C )*b;
  var ta = Math.cos( C )*b;
  var c = Math.sqrt( Math.pow( (a-ta), 2 )+Math.pow( h, 2 ) );
   
  var S = (a*h)/2;
  var L = a+b+c;
  console.log( S+'\n'+L+'\n'+h );