I honestly am lost to this project. Someone please help.

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Java

Android

In this assignment, you are to write a handful of methods that perform common geometry calculations such as calculating the area of a circle, or the perimeter of a right triangle, or the volume of a box.

You are to write a handful of methods that perform common geometry calculations. Below are the headers of the methods you are to add to the Logic class contained in the file Logic.java. These are just the headers. Your job is to add each of these methods, including method header and method body, to the file Logic.java.

public static double rectangleArea(double length, double width)

public static double rectanglePerimeter(double length, double width)

public static double circleArea(double radius)

public static double circleCircumference(double radius)

public static double rightTriangleArea(double base, double height)

public static double rightTrianglePerimeter(double base, double height)

public static double boxVolume(double length, double width, double depth)

public static double boxSurfaceArea(double length, double width, double depth)

public static double sphereVolume(double radius)

public static double sphereSurfaceArea(double radius)

Each method should accept parameters as specified above, in the specified order. It is recommended that you simply copy-n-paste the above headers into your file. The methods should then perform the necessary calculations and return the results to the caller. What the methods compute is fairly obvious. For computing the area and perimeter of a triangle, we will doing so only for a right triangle with the given base and height (and thus the names of the methods).

Source code aesthetics (commenting, indentation, spacing, identifier names): You should properly indent your code. No line of your code should be over 100 characters long (even better is limiting lines to 80 characters). You should use a consistent programming style. This should include the following.

 Meaningful variable & method names
 Consistent indenting
 Use of "white-space" and blank lines to make the code more readable  Use of comments to explain pieces of tricky code
 Comment headers on all methods that explain what the method computes and any pre- or post-conditions.

What I have tried:

I haven't tried a thing. This assignment has me totally stumped, and as for google searches, I don't even know what to query.