Computer Science Write a C program to create one parent and three child process to calculate the sum of the areas of a triangle (base = 3, height = 4), a circle (radiu = 5), and a square (side = 4) 1...

Write a C program to create one parent and three child process to calculate the sum of the areas of a triangle (base = 3, height = 4), a circle (radiu = 5), and a square (side = 4) 1 , such that each of them shall be passed to a child process to calculate, then the result will be sent back for the parent process to sum up and report.