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, pi, sqrt
a, b, C = map(int, input().split())
S = a*b*sin(C*pi/180)/2
c = sqrt(a**2 + b**2 - 2*a*b*cos(C*pi/180))
h = 2*S/a
print(S)
print(a+b+c)
print(h)