Write a program that will calculate and print the area of a square where its
side length is given by the user.
be
to compute the area, write a function named calculate_area that takes a
single parameter, side_length. the parameter should be given a default
value of 10.
if the user enters a length value of 0 or less, call calculate_area and use the
default value. otherwise, use the length value given as the parameter value.
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for example, if the following input is given:
ga
enter
enter side length: 0
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the following output should be printed:
the area of a square with sides of length 10 is 100.