### Home > MC2 > Chapter 5 > Lesson 5.3.3 > Problem5-110

5-110.

Remember that the circumference of a circle is equal to $π$ times the diameter. Find the circumference of a circle with:

Remember, $π ≈ 3.14$ and that the diameter $= 2$(radius).

1. diameter $=10$

Circumference $= 10π = 31.4$

1. radius $=10$

1. diameter $= 15$