C program that:

1. Has a triangle function (which receives and sends no arguments) to:
   1. Calculates the area of ANY* triangle (prompts the user for necessary values.)
   2. Uses integer values and displays them in a field width of 8.
   3. Provides an answer to the user such as follows:
      • The area of the triangle with base 7 and height 8 is 28.
2. Has a circle function (which receives and sends no arguments) to:
   1. Prompts the user for necessary values.
   2. Accurately calculate the circumference of ANY* circle.
   3. Uses a constant for PI (See textbook for constants)
   4. Displays answer with values left-justified, with field with of 4 and only two decimal values
   5. Displays the answer to the user such as follows:
      • The circumference of the circle with a radius of 6 is 37.7.

*ANY in this and future assignments mean any values that the user enters.