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)

import math
a, b, C = map(float, input().split())
C = 2*math.pi/360*C

S = 0.5 * a * b * math.sin(C)
L = a + b + math.sqrt(a**2 + b**2 - 2*a*b*math.cos(C))
h = b * math.sin(C)
print(S, L, h)