The whole circle is 360° and the unknown non-shaded area can be found by subtracting 360 - 64 - 48 (shaded areas) - 165 (known non-shaded area) which is 83°. The non-shaded area is 83° + 165°, or 248°.
To find the probability of landing on a non-shaded area, divide 248 / 360; that is equal to 0.688 repeating so the answer is B) 0.69
