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Task 7

Copy the following diagram onto your vertical surface. Then answer the questions that follow.

What percentage of the circumference of the circle is bold? What is the circumference of this circle? Use your answer to the question above in conjunction with the details shown in the diagram to determine the radius of this circle. (Note: It's not 3).

Copy the following diagram onto your vertical surface. Then answer the questions that follow.

What percentage of the area of the entire circle is shaded here? What is the area of the entire circle? Use your answer to the questions above in conjunction with the details shown in the diagram to determine the radius of this circle. (Note: It's not 3).