Question

Select the correct answer. a circle with center o. 3 points a, b, and c are on the circumference. a line each slopes downward to the left and downward to the right from o to a and c. line rises from o to b. line runs from a to b and from b to c. angle at b is 70 degrees. in the diagram, point o is the center of the circle. if m∠ = 70°, what is m∠ ? a. 100° b. 110° c. 140° d. 130°

Answer 1

Answer:The answer is C:140

Explanation:

Angle AOC is twice the size of angle abc.