Introduction to Programming using Python 1st Edition

Published by Pearson
ISBN 10: 0132747189
ISBN 13: 978-0-13274-718-9

Chapter 4 - Selections - Programming Exercises - Page 125: 4.23

Answer

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Work Step by Step

# 4.23 (Geometry: point in a rectangle?) Write a program that prompts the user to enter # a point (x, y) and checks whether the point is within the rectangle centered at # (0, 0) with width 10 and height 5. For example, (2, 2) is inside the rectangle and # (6, 4) is outside the rectangle, as shown in Figure 4.8b. (Hint: A point is in the # rectangle if its horizontal distance to (0, 0) is less than or equal to 10 / 2 and # its vertical distance to (0, 0) is less than or equal to 5.0 / 2. Test your program # to cover all cases.) import math HEIGHT = 5 WIDTH = 10 X = Y = 0 x, y = eval(input("Enter a point with two coordinates: ")) distance = math.sqrt((x - X) ** 2 + (y - Y) ** 2) if WIDTH >= distance >= -WIDTH and HEIGHT >= distance >= -HEIGHT: print("Point (", format(x, "0.1f"), ",", format(y, "0.1f"), ")", "is in the rectangle") else: print("Point (", format(x, "0.1f"), ",", format(y, "0.1f"), ")", "is not in the rectangle")
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