A quadrilateral ABCD is inscribed in a circle with center O. The circular arc AC on which point D
| August 31, 2021 | education
A quadrilateral ABCD is inscribed in a circle with center O. The circular arc AC on which point D lies is equal to 156 degrees. Find ABC.
It can be seen from the problem statement that the circle is divided by points A and C into two arcs on which points B and D are located.
The length of the arc on which point D is located is 156 °.
The circumference is 360 °.
Determine the length of the arc with point B:
360 – 156 = 204.
Answer: the length of the arc ABC is 204 °.
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