Your answer is Bertrand Russel
Answer:
Option D.75°
Step-by-step explanation:
we know that
The sum of the interior angles of a regular dodecagon is equal to

where
n is the number of sides
In this problem
n=12 sides
substitute


Find the measure of each interior angle
Divide the sum of the interior angles by the number of sides

The measure of the angle formed by the radius and the side of a regular dodecagon is half the measure of the interior angle
therefore

15/16 as a fraction or 3.125 as a decimal
Sorry but you didnt add a picture nor description. If you can, please re-ask this question with the following:
Details to your question
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Thanks - Madilyn.