Based on the letters in "KLINE ST," none of them appear to have an obtuse angle.
To determine which letter on the "KLINE ST" sign has an obtuse angle, let's analyze the letters:
K: The letter "K" typically has acute angles at the top diagonal strokes and right angles at the vertical and horizontal strokes. No obtuse angle here.
L: The letter "L" usually has a right angle.
I: The letter "I" has two vertical strokes, forming a right angle.
N: The letter "N" generally has acute angles at the top diagonal strokes and right angles at the vertical and horizontal strokes. No obtuse angle here.
E: The letter "E" can have acute angles at the diagonal strokes, and right angles where the horizontal and vertical strokes meet. No obtuse angle here.
So, based on the letters in "KLINE ST," none of them appear to have an obtuse angle.