Question

Us
Find the circumference of this circle
ysing 3 for a
C ~ [?]
20
C=πα

Answer 1

`2*\pi *10=62.83185307`

`20/2 = 10`

`(Radius)`
`Or the C = \pi*d`

62.83185307 is the answer

Answer 2

C≈60

Explanation:

remember circumference formula

`\displaystyle C = 2\pi r`

given that,d=20 therefore r would be 20/2=10 thus substitute:

`\displaystyle C = 2\pi .10`

simplify mutilation:

`\displaystyle C = 20\pi`

substitute the given value of π:

`\displaystyle C = 20.3`

simplify multiplication:

`\displaystyle C = 60`

and we are done!