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 Python (judge verdict: Accepted)

from math import *
a,b,C=map(int,raw_input().split())
C = radians(C)

print (0.5)*a*b*sin(C)
print sqrt(a**2+b**2-2*a*b*cos(C)) + a + b
h = b*sin(C)
print h