"use strict";
main(require("fs").readFileSync("/dev/stdin", "utf8").replace(/\r?\n$/, "").split(/\r?\n/));

function main(lines){
	var ary = lines[0].split(" ").map(Number);
	var a = ary[0], b = ary[1], C = ary[2] / 180 * Math.PI;
	console.log(a * b * Math.sin(C));
	console.log(a + b + Math.sqrt(a*a + b*b - 2*a*b*Math.cos(C)));
	console.log(b * Math.sin(C));
}