11). A circle has a diameter of 4 cm. What is the circumference ?Use _____________ |
12). A circle has a radius of 3 m. What is its circumference?______________ |

13). A regular octagon has sides of 3 cm. What is its perimeter? _____________ |
14). What is the perimeter of a four sided figure whose sides are 2 in, 3 in, 4 in, and 3 in.? Draw a picture of it and labael the sides. ______________ |

15). [Extra credit]

Answer: _________________

16). [Extra credit]Answer: _________________

17). [Extra credit]Answer: _________________