Rectangles

How many different rectangles with sides integers (in mm) have a circumference of exactly 1000 cm? (a rectangle with sides of 50cm and 450cm is considered to be the same as a rectangle with sides of 450cm and 50cm)

Correct answer:

n =  2500

Step-by-step explanation:

2(a+b) = 10000 a+b = 5000  n=5000/2=2500



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