1. Section 4.6 Circumference of a Circle

2. Example 1 Find the circumference of a circle whose diameter is 6.8 centimeters. Round to the nearest tenth.

3. Your Turn Find the circumference of a circle whose diameter is 12.4 inches. Round to the nearest tenth.

4. Example 2 ARCHAEOLOGY In the Chinese city of Xi’an, thousands of terra cotta soldiers were discovered during an archaeological excavation. The distance from the center of the ancient city to its surrounding circular walls is about 1.89 kilometers. What is the circumference of the wall?

5. Your Turn SWIMMING POOL A new swimming pool is being built for young children at the community recreation center. The pool is circular and the distance from the center fountain to the edges is 8.5 feet. What is the circumference of the pool?

6. Assignment Page 163-164 #10-26 even