Question

Find the circumference of this circle
using 3 for T.
C~[?]
15
C = 27Tr

Answer 1

C≈90

Explanation:

remember circumference formula

`\displaystyle C = 2\pi r`

given that,r=15 thus substitute:

`\displaystyle C = 2\pi .15`

simplify mutilation:

`\displaystyle C = 30\pi`

substitute the given value of π:

`\displaystyle C = 30.3`

simplify multiplication:

`\displaystyle C = 90`

and we are done!

Answer 2

Answer: 90

Explanation:

c = 2πr

r = 15

d = 30

30π = 90