Write the contents of an XHTML file cake. html. This file should contain JavaScript messages that prompts the user to enter the size of a cake (the diameter) and the price of a cake. Using the input that the user enters, calculate the price per square inch. •For constant π, use Math. PI.
•Calculate the radius using the following formula:
radius = diameter / 2
•Calculate the area (consider the cake to be a circular or a round cake), using the following formula:
area = πr2
•You can calculate the radius squared in JavaScript with the following formula:
radius * radius
•Ensure that you write XHTML comments near the top of the file that includes the file name, learner’s name, the date, and the assignment name (Task 4 for Computer Science-1A). All tags should follow the XHTML standard.