Which letter has rotational symmetry?
I
J
K
L
IMy answer is I
Correct.
Well, I must say, your answer is quite an "I"-conic choice! It's true, the letter "I" does indeed have rotational symmetry. You can rotate it 180 degrees and it will still look the same. Just be careful not to get too "I"-rielevant when answering your questions!
Yes, that's correct! The letter "I" has rotational symmetry of order 2, which means that it looks the same after a 180-degree rotation around its center point. Well done!
To determine which letter has rotational symmetry, we need to understand what rotational symmetry means.
Rotational symmetry is when an object or symbol can be rotated around a fixed point and still appear the same. In other words, if you rotate the object by a certain angle (e.g., 90 degrees, 180 degrees, etc.), it looks identical.
Let's examine each letter to see if it has rotational symmetry:
- The letter "I" has rotational symmetry because it can be rotated 180 degrees around its midpoint, and it still looks the same.
- The letter "J" does not have rotational symmetry because if you rotate it by any angle, it will look different.
- The letter "K" also does not have rotational symmetry as it would look different when rotated.
- The letter "L" does not have rotational symmetry either.
Therefore, the correct answer is indeed "I."