3 years ago

Point O is the centre of the circle. What is the value of x? (Assume that lines that appear to be tangent are tangent)

1 answer:

5 0

Sum if the inner angles of the quadrilateral:
150° + 90° + 90° + x = 360°
330° + x = 360°
x = 360° - 330°
x = 30 °

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