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tigry1 [53]
3 years ago
5

What is the exact circumference of the circle?

Mathematics
1 answer:
cestrela7 [59]3 years ago
4 0

Hello!

What is the exact circumference of the circle?

A.

10π feet  

B.

20π feet  

C.

40π feet  

D.

60π feet

Solving: Using the data  (Circle with center A and diameter of 20 feet labeled).

diameter = 2*radius

20 = 2*r

2\:r = 20

r = \dfrac{20}{2}  

\boxed{r = 10\:ft}

Formula: (Circle length)

\boxed{C = 2* \pi *r}

Now, replace in the circumference length formula:

C = 2\:\pi *r

C = 2\:\pi *10

\boxed{\boxed{C = 20\:\pi\:ft}}\end{array}}\qquad\quad\checkmark

Answer:  

B.  20π feet

\underline{The\:exact\:circumference\:of\:the\:circle\:is\:\:20\:\pi\:ft}

______________________________

I Hope this helps, greetings ... Dexteright02! =)

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