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 Python3 (judge verdict: Accepted)

from math import sin,cos,radians
a,b,c=map(int,input().split())
c=radians(c)
s=a*b*sin(c)*0.5
for i in[s,a+b+(a*a+b*b-2*a*b*cos(c))**0.5,s/a*2]:print('%5f'%i)