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Odd and even square numbers
As all even square numbers are divisible by 4, the even numbers of the form 4n + 2 are not square numbers. As all odd square numbers are of the form 4n + 1, the odd numbers of the form 4n + 3 are not square numbers.
Step-by-step explanation:
1.5, or 1 1/2
idk
we are nt on that yet
2. Definition of perpendicular lines
3. Given
4. SD and DS are congruent
5. HL theorem
i am sorry i have no idea sorry