In the circle below, segment AB is a diameter. If the length of are ACB is 6pi what is the length of the radius of the circle?

Find the value of the cosine for angle a

What is the value of x in the diagram below?

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.