An equilateral triangle is inscribed in a circle. We draw a line through the midpoints of two sides of the triangle. The ratio AB:BC is the golden ratio. Prove it.

Anew movie is released each year for 14 years to go along with a popular book series. each movie is 2 minutes longer than the last to go along with a plot twist. the first movie is 70 minutes long. use an arithmetic series formula to determine the total length of all 14 movies