Problem:
Triangle

For given two sides of a triangle a and b and the angle C between them, calculate the following properties:

S: Area of the triangle

L: The length of the circumference of the triangle

h: The height of the triangle with side a as a bottom edge

Input

The length of a, the length of b and the angle C are given in integers.

Output

Print S, L and h in a line respectively. The output should not contain an absolute error greater than 10-4.

Sample Input

4 3 90

Sample Output

6.00000000
12.00000000
3.00000000

Solution in Ruby (judge verdict: Accepted)

a,b,c = gets.split.map(&:to_f)
s = Math.sin(c/180.0 * Math::PI) * a * b /2
ll =a**2 + b**2 - 2*a*b*Math.cos(c/180.0 * Math::PI)
l = Math.sqrt(ll)
p s
p a + b + l
p (s*2)/a