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Follow the steps to find the area of the shaded region. The height (h) is needed to find the area of the triangle. Some imaginary lines have been drawn to help find it. Start by find the measure of angle x.​

Follow the steps to find the area of the shaded region. The height (h) is needed to-example-1
User Anice
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Explanation:

angle 'x' and 129 degrees form a straight line (the diameter) = 180 degrees

x + 129 = 180

x = 180 -129 = 51 degrees

User TXK
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