Which upper case letters of the English alphabet look the same after being rotated 90 degrees?
Well, just look at them!
O is one (if it is circular, not an ellipse)
any others?
O and X
There are 5 upper case letters of the English alphabet that look the same after being rotated 90 degrees. They are:
1. H
2. I
3. N
4. O
5. S
To determine which upper case letters of the English alphabet look the same after being rotated 90 degrees, let's analyze each letter one by one:
1. A: After rotating A by 90 degrees clockwise, it becomes a letter that does not exist in the English alphabet.
2. B: When B is rotated by 90 degrees clockwise, it looks like a vertical line, which is not a letter.
3. C: Rotating C by 90 degrees clockwise results in a shape that does not resemble any other letter.
4. D: After rotating D by 90 degrees clockwise, it looks like a backward "C," but still different from any other letter.
5. E: If E is rotated by 90 degrees clockwise, it will resemble the letter "M."
6. F: When F is rotated by 90 degrees clockwise, it becomes a mirror image of the letter.
7. G: After rotating G by 90 degrees clockwise, it looks like a backward "L," but different from any uppercase letter.
8. H: Rotating H by 90 degrees clockwise results in a letter that does not match any other uppercase letter.
9. I: If I is rotated by 90 degrees clockwise, it remains unchanged and looks like itself.
10. J: When J is rotated by 90 degrees clockwise, it looks like a letter that does not exist in the English alphabet.
11. K: After rotating K by 90 degrees clockwise, it becomes a letter that does not look like any other uppercase letter.
12. L: Rotating L by 90 degrees clockwise results in a shape that does not resemble any other letter.
13. M: If M is rotated by 90 degrees clockwise, it will look like the letter "W" in uppercase.
14. N: When N is rotated by 90 degrees clockwise, it becomes a letter that does not exist in the English alphabet.
15. O: After rotating O by 90 degrees clockwise, it looks like a circle, which does not resemble any uppercase letter.
16. P: Rotating P by 90 degrees clockwise results in a letter that does not match any other uppercase letter.
17. Q: If Q is rotated by 90 degrees clockwise, it will resemble the letter "D" in uppercase.
18. R: When R is rotated by 90 degrees clockwise, it becomes a letter that does not exist in the English alphabet.
19. S: Rotating S by 90 degrees clockwise results in a letter that does not resemble any other uppercase letter.
20. T: If T is rotated by 90 degrees clockwise, it remains unchanged and looks like itself.
21. U: When U is rotated by 90 degrees clockwise, it becomes a letter that does not look like any other uppercase letter.
22. V: Rotating V by 90 degrees clockwise results in a letter that does not match any other uppercase letter.
23. W: If W is rotated by 90 degrees clockwise, it will resemble the letter "M" in uppercase.
24. X: When X is rotated by 90 degrees clockwise, it becomes a letter that does not exist in the English alphabet.
25. Y: Rotating Y by 90 degrees clockwise results in a letter that does not resemble any other uppercase letter.
26. Z: If Z is rotated by 90 degrees clockwise, it remains unchanged and looks like itself.
After examining each letter, the uppercase letters of the English alphabet that look the same after being rotated 90 degrees are: I, T, and Z.