Question

Henry needs to give an informal proof of the formula for the circumference of a circle.

● He first constructs a circle, with center O, and labels a point on the circle as P.

● He draws a radius from O to P.

● He then uses point P as the center to construct a new circle.

● He draws two line segments, each formed by joining point O with the points of intersection of the two circles.

Which of these is a plausible next step in Henry's proof process?


A. Construct another circle with a doubled radius.

B. Construct another circle with a doubled radius.

C. Construct a rectangle that circumscribes the original circle.

D. Construct a rectangle that circumscribes the original circle.

Construct an octagon that circumscribes the original circle.

Construct an octagon that circumscribes the original circle.

Construct a hexagon inscribed in the original circle.

Answer 1

c