Question

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.

Answer 1

`83.21 mm`

Step-by-step explanation:

Given that The $1 coin here depicts Sacagawea and her infant son. The diameter of the coin is 26.5 millimeters.

Since for any circle we have

circumference of a circle =
`\pi d`

where d = diameter of the circle =26.5 mm and pi = 3.14

Hence circumference =
`= 3.14(26.5) mm`

`=83.21 mm`

Answer 2

Answer:
83.21 mm.

Step-by-step 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