A circle is separated into ten sections of equal area. These ten sections are arranged to form a shape similar to a parallelogram. Part A

How does the height of the parallelogram and its base relate to the circle?

Enter your answer in the space provided.

Part B

Use your answers from Part A to explain how the formula for the area of a parallelogram, A = b × h , can be transformed to represent the area of a circle, A , in terms of its radius, r.

Enter your explanation in the space provided.