a circular coin has radius of 8.2 what is the circumference rounded to the nearest tenth? please show work

Circumference

= 2πr
= 2*3.14159*8.2 (mm, I suppose)
= 51.522 mm
= 51.5 mm (rounded to the nearest 1/10th)

To calculate the circumference of a circle, you can use the formula:

Circumference = 2 * π * radius

Given that the radius is 8.2, we can substitute this value into the formula:

Circumference = 2 * π * 8.2

Now, let's calculate the circumference using the value of π as approximately 3.14:

Circumference = 2 * 3.14 * 8.2

Circumference = 51.536

Rounding this to the nearest tenth, we get:

Circumference ≈ 51.5

Therefore, the circumference of the circular coin, rounded to the nearest tenth, is 51.5.

To find the circumference of a circular coin, you can use the formula:

Circumference = 2 * π * radius

where π (pi) is a mathematical constant approximately equal to 3.14159.

Given that the radius of the coin is 8.2, we can substitute this value into the formula:

Circumference = 2 * π * 8.2

Now, let's calculate the circumference:

Circumference = 2 * 3.14159 * 8.2
= 51.796496

To round the circumference to the nearest tenth, we consider the digit in the hundredths place—9 in this case. Since 9 is greater than or equal to 5, we round the digit in the tenths place up. Therefore, the rounded circumference is:

Circumference ≈ 51.8

So, the circumference of the coin, rounded to the nearest tenth, is 51.8.