Q:

The $1 coin here depicts Sacagawea and her infant son. The diameter of the coin is 26.5 millimeters. Find the circumference. Use 3.14 for π and round to at least 1 decimal place.The circumference is ______ millimeters.

Accepted Solution

A:
Answer:
83.21 mm.

Explanation:
Circumference of a circle is is found by using the formula:
C=πd.
C is the Circumference.
d is diameter.
π is the ratio for Pi,

In this case we will use:
3.14 instead of π
d = 26.5 mm

Plug in the known values.
C=(3.14)(26.5) = 83.21 mm