PseudoCode :

//This program will calculate the area and perimeter using different functions.
//The numerical values for length and width will be provided as an input by the user
//Set function areaofrec as float
//Set function periofrec as float

//START Program

//set menuSelect, intValue as int
//set length, width, and result as float

//set while loop (while intValue >0) continue loop
//print “Enter a positive integer to calculate the area or perimeter of a rectangle; “
//print “OR a negative integer to exit program”
//input positive or negative integer

//create if else statement
//If intValue >0 continue with program
//else if intValue < 0 exit program
//if intValue > 0 print “Enter 1 to calculate area, 2 to calculate perimeter”
//input menuSelect option

//if menuSelect == 1
//call the area function
//print “you chose to calculate the area of the rectangle!”
//print “please enter the length and width of the rectangle”
//print “enter length first, hit enter, enter width, hit enter”
//input length and width
//set result = areaofrec(length,width)
//print result “The area of the rectangle is (result) “

//else if menuSelect == 2
//call the perimeter function
//print “you chose to calculate the perimeter of the rectangle!”
//print “please enter the length and width of the rectangle”
//print “enter length first, hit enter, enter width, hit enter”
//input length and width
//set result = periofrec(length,width)
//print result “The perimeter of the rectangle is (result) “

//else if menuSelect != 1 or 2
//print “invalid manu item, only 1 or 2 accepted”

//End Program

//set function returning the area of a rectangle
//set areaofrec(length,width)
// return length*width

//set function returning the perimeter of a rectangle
//set periofrec(length,width)
// return (length*2)+(width*2)