follow guidelines to write code number 2

In general, use lower case letters for variable names. Variable names should be mnemonic. Separate multiple words in a variable name with an underscore or begin the second word with an uppercase letter. Indent 2-4 spaces (optimally 3) within main. The editor should take care of proper indenting, Place no more than one C statement per line. Since we have not studied the math library yet, use multiplication (x*x or x*x*x) to square or cube a value. 2. Write a program that prompts the user to input a radius in centimeters and calculates and then prints the area of a circle, volume of a sphere, and surface area of a sphere with that radius. Define PI as a defined constant using a preprocessor command with a value of 3.14159265 or declare pi as a constant variable. Use data type double for all variables. Using a complete sentence, print the circle area as a decimal with 2 digits following the decimal point. Include units. Using a complete sentence, print the volume of the sphere in exponential format with 4 digits following the decimal point when written in exponential notation. (Use the formula V Beware of truncating the fraction 4/3.) Include units. 3.0 Again using a complete sentence, output the surface area of the sphere in g format with 5 significant digits. Include units