Computers and Technology, 21.08.2019 19:30 pal23

The node is the only mode that has no parent
a. root
b. binary
c. child
d. n-ary

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Write a program that displays the following menu: geometry calculator 1. calculate the area of a circle 2. calculate the area of a rectangle 3. calculate the area of a triangle 4. quit enter your choice (1-4): if the user enters 1, the program should ask for the radius of the circle and then display its area. use the following formula: area = ď€(the square of r) use 3.14159 for ď€ and the radius of the circle for r. if the user enters 2, the program should ask for the length and width of the rectangle and then display the rectangleâ€™s area. use the following formula: area = length * width if the user enters 3, the program should ask for the length of the triangleâ€™s base and its height, and then display its area. use the following formula: area = base * height * .5 if the user enters 4, the program should end. input validation: display an error message if the user enters a number outside the range of 1 through 4 when selecting an item from the menu. do not accept negative values for the circleâ€™s radius, the rectangleâ€™s length or width, or the triangleâ€™s base or height. note: if the user enters an improper menu choice (1-4), the program prints "the valid choices are 1 through 4. run the program again and select one of those." if the user enters a negative radius, the program prints "the radius can not be less than zero." if the user enters a negative value for height or base, the program prints "only enter positive values for base and height."

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The node is the only mode that has no parent
a. root
b. binary
c. child
d....

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