Answer:
180°
Step-by-step explanation:
You can rotate the equilateral triangle 180° to match the original orientation.
The frequency is how often something occurs. Here 15. It occurred 15 times that the participants scored in the interval given.
The relative frequency (expressed as a percent) looks at how often something occurred relative to the overall occurrences. Here 15/60 = 1/4 = 25%
The relative frequency is 25%
Answer:

<h3>
<em><u>2√6</u></em> is the right answer.</h3>