The circumference of a coin is about 66 mm. What is the area? Use 3.14 for π. Round to the nearest tenth after each step in your calculation.

The area of the coin is about mm2.

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

What is the least common factor of 6 and 8

We just started the introduction into circles and i have no idea how to do this.