Exercise 1: Write a python program that reads from a text file whose name is provided by the user and including lines relating to the dimensions of three kinds of shapes: Circle, Triangle, Trapezoid (see figure below for a sample input file). For each shape compute and display its area: - Triangle area = base X height. - Circle area = radius². - Trapezoid area = (base 1 + base,)X height. Your program should consider the following erroneous cases: • The file does not open/exist • The format of the data in the file is incorrect (e.g. shape name = 'Polygon'), the shape's dimensions are incorrect (e.g. negative value or number of values for a trapezoid not equal to 3: base,, base; and height, or), in which case RuntimeError exception should be raised and the processing should continue. Triangle: Circle: -10 Trapezoid: 1e 12 70 Trapezoid: 9 50 48 Shape Area Triangle Circle 1200.00 32 » invalid dimension Trapezoid Trapezoid 770.00 > missing data. Sample input file Sample output

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Exercise 1:
Write a python program that reads from a text file whose name is provided by the user and
including lines relating to the dimensions of three kinds of shapes: Circle, Triangle, Trapezoid
(see figure below for a sample input file). For each shape compute and display its area:
- Triangle area = base X height.
- Circle area =n radius².
- Trapezoid area = (base 1 + base,)X height.
Your program should consider the following erroneous cases:
• The file does not open/exist
• The format of the data in the file is incorrect (e.g. shape name = 'Polygon’), the shape's
dimensions are incorrect (e.g. negative value or number of values for a trapezoid not
equal to 3: base,, base, and height, or), in which case RuntimeError exception should
be raised and the processing should continue.
Triangle:
50
48
Shape
Area
Circle: -10
Triangle
Circle
Trapezoid: 10 12 70
1200.00
>> invalid dimension
770.00
Trapezoid: 9
32
Trapezoid
Trapezoid
>> missing data.
Sample input file
Sample output
Transcribed Image Text:Exercise 1: Write a python program that reads from a text file whose name is provided by the user and including lines relating to the dimensions of three kinds of shapes: Circle, Triangle, Trapezoid (see figure below for a sample input file). For each shape compute and display its area: - Triangle area = base X height. - Circle area =n radius². - Trapezoid area = (base 1 + base,)X height. Your program should consider the following erroneous cases: • The file does not open/exist • The format of the data in the file is incorrect (e.g. shape name = 'Polygon’), the shape's dimensions are incorrect (e.g. negative value or number of values for a trapezoid not equal to 3: base,, base, and height, or), in which case RuntimeError exception should be raised and the processing should continue. Triangle: 50 48 Shape Area Circle: -10 Triangle Circle Trapezoid: 10 12 70 1200.00 >> invalid dimension 770.00 Trapezoid: 9 32 Trapezoid Trapezoid >> missing data. Sample input file Sample output
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