The greatest common factor of any two even numbers is always even. is this true or false? explain if it's true, give a reason if it's false. it's urgent me!

Any even number can be represented as 2n where n is an integer

so any 2 even numbers can be represented as 2n and 2m

obviously, one of the common factors is 2
if m and n have no more common factors, then 2 is the GCF and the GCF is even

if m and n have a common factor of x, then the GCF is 2x which is even because x is an integer

true

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's