A circle is centered on point B. Points A, C and D lie on it's circumference. If ABC measures 40 degrees, what does ADC measure?

I will mark brainliest of correct.

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.

50 points~ ! i have to turn this in tomarrow