If in APQR, perimeter = 43cm, p + q = 25cm and q + r = 31cm, then find the area of APQR.
(Ans: 77.95cm)​

Write a program that prints the day number of the year, given the date in the form month-day-year. for example, if the input is 1-1-2006, the day number is 1; if the input is 12-25-2006, the day number is 359. the program should check for a leap year. a year is a leap year if it is divisible by 4, but not divisible by 100. for example, 1992 and 2008 are divisible by 4, but not by 100. a year that is divisible by 100 is a leap year if it is also divisible by 400. for example, 1600 and 2000 are divisible by 400. however, 1800 is not a leap year because 1800 is not divisible by 400.

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What judgment would you make about open systems interconnect? not useful that it is a technology that it is a model that it does not pertain to technology