# The diameter of a circle is 8 m. find the circumference to the nearest tenth

The diameter of a circle is 8 m. find the circumference to the nearest tenth

## This Post Has 10 Comments

1. 22ksotoq says:

16π

Step-by-step explanation:

Area = πr²

r - radius

r = d/2 = 8/2 =4

Area = 4²π = 16π

2. aletadaboss says:

25.1 cm

Step-by-step explanation:

Ao what you have to do is use the equation, C=p*d. Plug in 3.14 for pi and then plug in 8 for the diameter. Leaving you with the answer 25.1 cm

3. 19wawrzkeek says:

50.3

Step-by-step explanation:

The formula for the circumference of a circle is Area = pi * radius squared. So if the diameter is 8, then the radius is half of that, so it's 4. Now we square 4 and we get 16. Then multiply that by pi so we get 16 * pi = 50.26548. The tenth is the first # behind the decimal point, so your answer is 50.3. I hope this helped! 🙂

4. zuleidysnegron says:

25.1

Step-by-step explanation:

C = π(d)

Circumference = π (Diameter)

C = π (8)

= 25.1327412287

rounded = 25.1

5. Kana81 says:

25.1 ft

Step-by-step explanation:

To solve for circumference is pretty simple. Just use the equation 2pi r (r=radius, radius is diameter divided by 2).

So essentially, apply to your calculator:

2(3.14)4=25.12

pretty simple! hope this helps!

6. jerseygirl3467 says:

25.13 or 8 × pi

Step-by-step explanation:

diameter × pi = circumference

7. jamesjarrell67 says:

25.1 units

Step-by-step explanation:

The formula for the circumference of a circle is:

$C=2\pi r$

OR

$C=\pi d$

Since we have the diameter, I'm just going to use that. You can also use 4 as the radius, since half of the diameter is the radius.

$C=3.14*8$

$=25.12$

Rounded to the nearest tenth:

= 25.1 units

8. lelani16 says:

Step-by-step explanation:

formula for circumference of a circle=

C=2πr, r= radius

the radius is the diameter divided by 2

radius= 8/2=4

plug into formula

C=2π4

multiply 2 and 4

C=8π

9. lesliemar says:

20

Step-by-step explanation:

Circumference is 3 times the diameter so 8 times 3= 24 to the nearest tenth is 20 because 4 or less let it rest.

10. ashgold324 says:

25.1 m

Step-by-step explanation:

im pretty sure?