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: Wrong Answer)

a, b, C = gets.split.map(&:to_i)

h = b * Math.sin(C / 180.0 * Math::PI)
c = a**2 + b**2 -2 * a * b * Math.cos(C * Math::PI / 180.0)
s = a * h / 2

puts format("%.8f", s)
puts format("%.8f", a + b + c)
puts format("%.8f", h)