1) m∠1 = 360°/8 = 45° . . . . . a regular octagon is 8-way rotationally symmetrical, so each sector is 1/8 of a circle.
2) m∠2 = (180° -45°)/2 = 67.5° . . . . . . the angles of a triangle add to 180°. The base angles of an isosceles triangle are equal.
First let's find out the total number of strikeouts, by adding the number of strikeouts of each person:

Now, to find the percentage of strikeouts that Samar is responsible, let's divide his number of strikeouts (5) by the total number of strikeouts (50):

So Samar is responsible for 10% of the strikeouts.
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Answer:</h2><h2>D = 4</h2>
<h2>Hope this helps!!</h2>
(6,2) reflections change y axis