Program to calculate the area of Kite

Kite is something like rhombus but in Kite, the adjacent sides are equal and diagonals are generally not equal. 
 

Method 1: When both the diagonals are given
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If diagonals d1 and d2 are given of the kite, then the area of a kite is half of product of both the diagonals i.e.
 

Example:
 

Input: d1 = 4, d2 = 6
Output: Area of Kite = 12

Input: d1 = 5, d2 = 7
Output: Area of Kite = 17.5

Approach: In this method we simply use above formula.
Below is the implementation of the above approach:
 

Area of Kite = 12

Time Complexity: O(1)

Auxiliary Space: O(1)

Method 2: When side a, b and angle are given: 
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When the unequal sides of kite a and b and the included angle Θ between them are given, then 
 

Example: 
 

Input: a = 4, b = 7, θ = 78
Output: Area of Kite = 27.3881

Input: a = 6, b = 9, θ = 83
Output: Area of Kite = 53.5975

Approach: In this method we simply use above formula.
Below is the implementation of the above approach:
 

Area of Kite = 27.3881

Time Complexity: O(1)

Auxiliary Space: O(1)