Test 7 Section 4 #34

It’s important to know this about circles: many circle questionsespecially ones that deal with sectors like this one, are really just proportion questions. In this case, we know that every circle has 360° of arc around its center. The shaded portion represents 100°, so the proportion of the circle that is shaded is \dfrac{100}{360}=\dfrac{5}{18}.

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