As you know, you can find the area of a rectangle by multiplying its length by its width. You can also find the perimeter by adding the lengths of all four sides together. Write a Python program that accepts a base and height from the user as input and neatly prints the perimeter, the area, and the longest side. You output should be formatted similarly following. Notice that the decimal points are aligned, and all values are rounded to two decimal places with no commas; remember to use format()!

Write a program that displays a table of pounds and equivalent weights in kilograms. You can find the conversion factor online if necessary. Store this factor in a properly named constant. Allow the user to specify the range of pounds for the table by prompting for the start, stop, and step values for the pounds column. Display the pounds accurate to two decimal places centered in a column 10 characters wide. The kilometers should display accurate to three decimal places and right-aligned in a column 12 characters wide (see page 75-78). Column headings should be displayed with the same alignments.  See Sample Output.

When we say arithmetic expression, we mean a kind of expression you can type in a very basic desk calculator. That is, neither variables nor brackets are allowed. It contains only numbers and four arithmetic operators, +, -, *, and /.   The following are some examples of arithmetic expression:   Any number string with or without signs - e.g. 3, -1, +10, 3.14, -0.70 and 099. Number strings mixed with arithmetic operators - e.g. 3+5, -1+2*3, 7/10-0.7, and -1.4-+8.2.   An example of FA diagram for recognising a non-negative integer is given below. You may use it as a start point. You need to add a few more states and transitions to handle numbers with decimal point and signs (e.g. -5, +2, 0.21, -32.6, +99.05, but not the form 1.0E-3). Most importantly, you also need to add a few more things to deal with the arithmetic operators +, -, *, /.

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