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ch4aika [34]
3 years ago
9

The area is 28.26. What is the radius,

Mathematics
2 answers:
Semenov [28]3 years ago
4 0

Answer:

\sqrt(8.99

Step-by-step explanation:

A=pi r^2

28.26=pi r^2

k0ka [10]3 years ago
3 0

Answer:

18.84

Step-by-step explanation:

the area is already stated so,

28.26

=

π

⋅

r

2

28.26

π

=

r

2

8.995437

=

r

2

√

8.995437

=

r

2.999239

=

r

we have found that the radius is 2.999239 and the formula for circumference of a circle is:  

π

⋅

d

2.999239

⋅

2

=

5.99848

(multiply by 2 to get the diameter)

5.99848

⋅

π

=

18.84478

so the answer is 18.84

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